81831540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 192

約数和(自身を含む): 282852864

約数和(自身を除く): 201021324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 73, 84, 85, 102, 105, 119, 140, 146, 157, 170, 204, 210, 219, 238, 255, 292, 314, 340, 357, 365, 420, 438, 471, 476, 510, 511, 595, 628, 714, 730, 785, 876, 942, 1020, 1022, 1095, 1099, 1190, 1241, 1428, 1460, 1533, 1570, 1785, 1884, 2044, 2190, 2198, 2355, 2380, 2482, 2555, 2669, 3066, 3140, 3297, 3570, 3723, 4380, 4396, 4710, 4964, 5110, 5338, 5495, 6132, 6205, 6594, 7140, 7446, 7665, 8007, 8687, 9420, 10220, 10676, 10990, 11461, 12410, 13188, 13345, 14892, 15330, 16014, 16485, 17374, 18615, 18683, 21980, 22922, 24820, 26061, 26690, 30660, 32028, 32970, 34383, 34748, 37230, 37366, 40035, 43435, 45844, 52122, 53380, 56049, 57305, 65940, 68766, 74460, 74732, 80070, 80227, 86870, 93415, 104244, 112098, 114610, 130305, 137532, 160140, 160454, 171915, 173740, 186830, 194837, 224196, 229220, 240681, 260610, 280245, 320908, 343830, 373660, 389674, 401135, 481362, 521220, 560490, 584511, 687660, 779348, 802270, 962724, 974185, 1120980, 1169022, 1203405, 1363859, 1604540, 1948370, 2338044, 2406810, 2727718, 2922555, 3896740, 4091577, 4813620, 5455436, 5845110, 6819295, 8183154, 11690220, 13638590, 16366308, 20457885, 27277180, 40915770, 81831540]

約数ペア:

[(1, 81831540), (2, 40915770), (3, 27277180), (4, 20457885), (5, 16366308), (6, 13638590), (7, 11690220), (10, 8183154), (12, 6819295), (14, 5845110), (15, 5455436), (17, 4813620), (20, 4091577), (21, 3896740), (28, 2922555), (30, 2727718), (34, 2406810), (35, 2338044), (42, 1948370), (51, 1604540), (60, 1363859), (68, 1203405), (70, 1169022), (73, 1120980), (84, 974185), (85, 962724), (102, 802270), (105, 779348), (119, 687660), (140, 584511), (146, 560490), (157, 521220), (170, 481362), (204, 401135), (210, 389674), (219, 373660), (238, 343830), (255, 320908), (292, 280245), (314, 260610), (340, 240681), (357, 229220), (365, 224196), (420, 194837), (438, 186830), (471, 173740), (476, 171915), (510, 160454), (511, 160140), (595, 137532), (628, 130305), (714, 114610), (730, 112098), (785, 104244), (876, 93415), (942, 86870), (1020, 80227), (1022, 80070), (1095, 74732), (1099, 74460), (1190, 68766), (1241, 65940), (1428, 57305), (1460, 56049), (1533, 53380), (1570, 52122), (1785, 45844), (1884, 43435), (2044, 40035), (2190, 37366), (2198, 37230), (2355, 34748), (2380, 34383), (2482, 32970), (2555, 32028), (2669, 30660), (3066, 26690), (3140, 26061), (3297, 24820), (3570, 22922), (3723, 21980), (4380, 18683), (4396, 18615), (4710, 17374), (4964, 16485), (5110, 16014), (5338, 15330), (5495, 14892), (6132, 13345), (6205, 13188), (6594, 12410), (7140, 11461), (7446, 10990), (7665, 10676), (8007, 10220), (8687, 9420)]