1721042640

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{397}}^1$

素因数の和:648

約数の個数: 240

約数和(自身を含む): 6035947008

約数和(自身を除く): 4314904368

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 223, 240, 243, 270, 324, 360, 397, 405, 432, 446, 486, 540, 648, 669, 720, 794, 810, 892, 972, 1080, 1115, 1191, 1215, 1296, 1338, 1588, 1620, 1784, 1944, 1985, 2007, 2160, 2230, 2382, 2430, 2676, 3176, 3240, 3345, 3568, 3573, 3888, 3970, 4014, 4460, 4764, 4860, 5352, 5955, 6021, 6352, 6480, 6690, 7146, 7940, 8028, 8920, 9528, 9720, 10035, 10704, 10719, 11910, 12042, 13380, 14292, 15880, 16056, 17840, 17865, 18063, 19056, 19440, 20070, 21438, 23820, 24084, 26760, 28584, 30105, 31760, 32112, 32157, 35730, 36126, 40140, 42876, 47640, 48168, 53520, 53595, 54189, 57168, 60210, 64314, 71460, 72252, 80280, 85752, 88531, 90315, 95280, 96336, 96471, 107190, 108378, 120420, 128628, 142920, 144504, 160560, 160785, 171504, 177062, 180630, 192942, 214380, 216756, 240840, 257256, 265593, 270945, 285840, 289008, 321570, 354124, 361260, 385884, 428760, 433512, 442655, 481680, 482355, 514512, 531186, 541890, 643140, 708248, 722520, 771768, 796779, 857520, 867024, 885310, 964710, 1062372, 1083780, 1286280, 1327965, 1416496, 1445040, 1543536, 1593558, 1770620, 1929420, 2124744, 2167560, 2390337, 2572560, 2655930, 3187116, 3541240, 3858840, 3983895, 4249488, 4335120, 4780674, 5311860, 6374232, 7082480, 7171011, 7717680, 7967790, 9561348, 10623720, 11951685, 12748464, 14342022, 15935580, 19122696, 21247440, 21513033, 23903370, 28684044, 31871160, 35855055, 38245392, 43026066, 47806740, 57368088, 63742320, 71710110, 86052132, 95613480, 107565165, 114736176, 143420220, 172104264, 191226960, 215130330, 286840440, 344208528, 430260660, 573680880, 860521320, 1721042640]

約数ペア:

[(1, 1721042640), (2, 860521320), (3, 573680880), (4, 430260660), (5, 344208528), (6, 286840440), (8, 215130330), (9, 191226960), (10, 172104264), (12, 143420220), (15, 114736176), (16, 107565165), (18, 95613480), (20, 86052132), (24, 71710110), (27, 63742320), (30, 57368088), (36, 47806740), (40, 43026066), (45, 38245392), (48, 35855055), (54, 31871160), (60, 28684044), (72, 23903370), (80, 21513033), (81, 21247440), (90, 19122696), (108, 15935580), (120, 14342022), (135, 12748464), (144, 11951685), (162, 10623720), (180, 9561348), (216, 7967790), (223, 7717680), (240, 7171011), (243, 7082480), (270, 6374232), (324, 5311860), (360, 4780674), (397, 4335120), (405, 4249488), (432, 3983895), (446, 3858840), (486, 3541240), (540, 3187116), (648, 2655930), (669, 2572560), (720, 2390337), (794, 2167560), (810, 2124744), (892, 1929420), (972, 1770620), (1080, 1593558), (1115, 1543536), (1191, 1445040), (1215, 1416496), (1296, 1327965), (1338, 1286280), (1588, 1083780), (1620, 1062372), (1784, 964710), (1944, 885310), (1985, 867024), (2007, 857520), (2160, 796779), (2230, 771768), (2382, 722520), (2430, 708248), (2676, 643140), (3176, 541890), (3240, 531186), (3345, 514512), (3568, 482355), (3573, 481680), (3888, 442655), (3970, 433512), (4014, 428760), (4460, 385884), (4764, 361260), (4860, 354124), (5352, 321570), (5955, 289008), (6021, 285840), (6352, 270945), (6480, 265593), (6690, 257256), (7146, 240840), (7940, 216756), (8028, 214380), (8920, 192942), (9528, 180630), (9720, 177062), (10035, 171504), (10704, 160785), (10719, 160560), (11910, 144504), (12042, 142920), (13380, 128628), (14292, 120420), (15880, 108378), (16056, 107190), (17840, 96471), (17865, 96336), (18063, 95280), (19056, 90315), (19440, 88531), (20070, 85752), (21438, 80280), (23820, 72252), (24084, 71460), (26760, 64314), (28584, 60210), (30105, 57168), (31760, 54189), (32112, 53595), (32157, 53520), (35730, 48168), (36126, 47640), (40140, 42876)]