20504645880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{877}}^1$

素因数の和:1138

約数の個数: 256

約数和(自身を含む): 66520932480

約数和(自身を除く): 46016286600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 73, 85, 102, 120, 136, 146, 157, 170, 204, 219, 255, 292, 314, 340, 365, 408, 438, 471, 510, 584, 628, 680, 730, 785, 876, 877, 942, 1020, 1095, 1241, 1256, 1460, 1570, 1752, 1754, 1884, 2040, 2190, 2355, 2482, 2631, 2669, 2920, 3140, 3508, 3723, 3768, 4380, 4385, 4710, 4964, 5262, 5338, 6205, 6280, 7016, 7446, 8007, 8760, 8770, 9420, 9928, 10524, 10676, 11461, 12410, 13155, 13345, 14892, 14909, 16014, 17540, 18615, 18840, 21048, 21352, 22922, 24820, 26310, 26690, 29784, 29818, 32028, 34383, 35080, 37230, 40035, 44727, 45844, 49640, 52620, 53380, 57305, 59636, 64021, 64056, 68766, 74460, 74545, 80070, 89454, 91688, 105240, 106760, 114610, 119272, 128042, 137532, 137689, 148920, 149090, 160140, 171915, 178908, 192063, 194837, 223635, 229220, 256084, 275064, 275378, 298180, 320105, 320280, 343830, 357816, 384126, 389674, 413067, 447270, 458440, 512168, 550756, 584511, 596360, 640210, 687660, 688445, 768252, 779348, 826134, 894540, 960315, 974185, 1088357, 1101512, 1169022, 1280420, 1375320, 1376890, 1536504, 1558696, 1652268, 1789080, 1920630, 1948370, 2065335, 2176714, 2338044, 2340713, 2560840, 2753780, 2922555, 3265071, 3304536, 3841260, 3896740, 4130670, 4353428, 4676088, 4681426, 5441785, 5507560, 5845110, 6530142, 7022139, 7682520, 7793480, 8261340, 8706856, 9362852, 10051297, 10883570, 11690220, 11703565, 13060284, 14044278, 16325355, 16522680, 18725704, 20102594, 21767140, 23380440, 23407130, 26120568, 28088556, 30153891, 32650710, 35110695, 40205188, 43534280, 46814260, 50256485, 56177112, 60307782, 65301420, 70221390, 80410376, 93628520, 100512970, 120615564, 130602840, 140442780, 150769455, 170872049, 201025940, 241231128, 280885560, 301538910, 341744098, 402051880, 512616147, 603077820, 683488196, 854360245, 1025232294, 1206155640, 1366976392, 1708720490, 2050464588, 2563080735, 3417440980, 4100929176, 5126161470, 6834881960, 10252322940, 20504645880]

約数ペア:

[(1, 20504645880), (2, 10252322940), (3, 6834881960), (4, 5126161470), (5, 4100929176), (6, 3417440980), (8, 2563080735), (10, 2050464588), (12, 1708720490), (15, 1366976392), (17, 1206155640), (20, 1025232294), (24, 854360245), (30, 683488196), (34, 603077820), (40, 512616147), (51, 402051880), (60, 341744098), (68, 301538910), (73, 280885560), (85, 241231128), (102, 201025940), (120, 170872049), (136, 150769455), (146, 140442780), (157, 130602840), (170, 120615564), (204, 100512970), (219, 93628520), (255, 80410376), (292, 70221390), (314, 65301420), (340, 60307782), (365, 56177112), (408, 50256485), (438, 46814260), (471, 43534280), (510, 40205188), (584, 35110695), (628, 32650710), (680, 30153891), (730, 28088556), (785, 26120568), (876, 23407130), (877, 23380440), (942, 21767140), (1020, 20102594), (1095, 18725704), (1241, 16522680), (1256, 16325355), (1460, 14044278), (1570, 13060284), (1752, 11703565), (1754, 11690220), (1884, 10883570), (2040, 10051297), (2190, 9362852), (2355, 8706856), (2482, 8261340), (2631, 7793480), (2669, 7682520), (2920, 7022139), (3140, 6530142), (3508, 5845110), (3723, 5507560), (3768, 5441785), (4380, 4681426), (4385, 4676088), (4710, 4353428), (4964, 4130670), (5262, 3896740), (5338, 3841260), (6205, 3304536), (6280, 3265071), (7016, 2922555), (7446, 2753780), (8007, 2560840), (8760, 2340713), (8770, 2338044), (9420, 2176714), (9928, 2065335), (10524, 1948370), (10676, 1920630), (11461, 1789080), (12410, 1652268), (13155, 1558696), (13345, 1536504), (14892, 1376890), (14909, 1375320), (16014, 1280420), (17540, 1169022), (18615, 1101512), (18840, 1088357), (21048, 974185), (21352, 960315), (22922, 894540), (24820, 826134), (26310, 779348), (26690, 768252), (29784, 688445), (29818, 687660), (32028, 640210), (34383, 596360), (35080, 584511), (37230, 550756), (40035, 512168), (44727, 458440), (45844, 447270), (49640, 413067), (52620, 389674), (53380, 384126), (57305, 357816), (59636, 343830), (64021, 320280), (64056, 320105), (68766, 298180), (74460, 275378), (74545, 275064), (80070, 256084), (89454, 229220), (91688, 223635), (105240, 194837), (106760, 192063), (114610, 178908), (119272, 171915), (128042, 160140), (137532, 149090), (137689, 148920)]