161511240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:4003

約数の個数: 128

約数和(自身を含む): 545771520

約数和(自身を除く): 384260280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 186, 220, 248, 264, 310, 330, 341, 372, 440, 465, 620, 660, 682, 744, 930, 1023, 1240, 1320, 1364, 1705, 1860, 2046, 2728, 3410, 3720, 3947, 4092, 5115, 6820, 7894, 8184, 10230, 11841, 13640, 15788, 19735, 20460, 23682, 31576, 39470, 40920, 43417, 47364, 59205, 78940, 86834, 94728, 118410, 122357, 130251, 157880, 173668, 217085, 236820, 244714, 260502, 347336, 367071, 434170, 473640, 489428, 521004, 611785, 651255, 734142, 868340, 978856, 1042008, 1223570, 1302510, 1345927, 1468284, 1736680, 1835355, 2447140, 2605020, 2691854, 2936568, 3670710, 4037781, 4894280, 5210040, 5383708, 6729635, 7341420, 8075562, 10767416, 13459270, 14682840, 16151124, 20188905, 26918540, 32302248, 40377810, 53837080, 80755620, 161511240]

約数ペア:

[(1, 161511240), (2, 80755620), (3, 53837080), (4, 40377810), (5, 32302248), (6, 26918540), (8, 20188905), (10, 16151124), (11, 14682840), (12, 13459270), (15, 10767416), (20, 8075562), (22, 7341420), (24, 6729635), (30, 5383708), (31, 5210040), (33, 4894280), (40, 4037781), (44, 3670710), (55, 2936568), (60, 2691854), (62, 2605020), (66, 2447140), (88, 1835355), (93, 1736680), (110, 1468284), (120, 1345927), (124, 1302510), (132, 1223570), (155, 1042008), (165, 978856), (186, 868340), (220, 734142), (248, 651255), (264, 611785), (310, 521004), (330, 489428), (341, 473640), (372, 434170), (440, 367071), (465, 347336), (620, 260502), (660, 244714), (682, 236820), (744, 217085), (930, 173668), (1023, 157880), (1240, 130251), (1320, 122357), (1364, 118410), (1705, 94728), (1860, 86834), (2046, 78940), (2728, 59205), (3410, 47364), (3720, 43417), (3947, 40920), (4092, 39470), (5115, 31576), (6820, 23682), (7894, 20460), (8184, 19735), (10230, 15788), (11841, 13640)]