87431240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{439}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 212889600

約数和(自身を除く): 125458360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 383, 439, 520, 766, 878, 1532, 1756, 1915, 2195, 3064, 3512, 3830, 4390, 4979, 5707, 7660, 8780, 9958, 11414, 15320, 17560, 19916, 22828, 24895, 28535, 39832, 45656, 49790, 57070, 99580, 114140, 168137, 199160, 228280, 336274, 672548, 840685, 1345096, 1681370, 2185781, 3362740, 4371562, 6725480, 8743124, 10928905, 17486248, 21857810, 43715620, 87431240]

約数ペア:

[(1, 87431240), (2, 43715620), (4, 21857810), (5, 17486248), (8, 10928905), (10, 8743124), (13, 6725480), (20, 4371562), (26, 3362740), (40, 2185781), (52, 1681370), (65, 1345096), (104, 840685), (130, 672548), (260, 336274), (383, 228280), (439, 199160), (520, 168137), (766, 114140), (878, 99580), (1532, 57070), (1756, 49790), (1915, 45656), (2195, 39832), (3064, 28535), (3512, 24895), (3830, 22828), (4390, 19916), (4979, 17560), (5707, 15320), (7660, 11414), (8780, 9958)]