15731120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:342

約数の個数: 80

約数和(自身を含む): 39774240

約数和(自身を除く): 24043120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 269, 272, 340, 344, 430, 538, 680, 688, 731, 860, 1076, 1345, 1360, 1462, 1720, 2152, 2690, 2924, 3440, 3655, 4304, 4573, 5380, 5848, 7310, 9146, 10760, 11567, 11696, 14620, 18292, 21520, 22865, 23134, 29240, 36584, 45730, 46268, 57835, 58480, 73168, 91460, 92536, 115670, 182920, 185072, 196639, 231340, 365840, 393278, 462680, 786556, 925360, 983195, 1573112, 1966390, 3146224, 3932780, 7865560, 15731120]

約数ペア:

[(1, 15731120), (2, 7865560), (4, 3932780), (5, 3146224), (8, 1966390), (10, 1573112), (16, 983195), (17, 925360), (20, 786556), (34, 462680), (40, 393278), (43, 365840), (68, 231340), (80, 196639), (85, 185072), (86, 182920), (136, 115670), (170, 92536), (172, 91460), (215, 73168), (269, 58480), (272, 57835), (340, 46268), (344, 45730), (430, 36584), (538, 29240), (680, 23134), (688, 22865), (731, 21520), (860, 18292), (1076, 14620), (1345, 11696), (1360, 11567), (1462, 10760), (1720, 9146), (2152, 7310), (2690, 5848), (2924, 5380), (3440, 4573), (3655, 4304)]