156738920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{787}}^1$

素因数の和:1194

約数の個数: 64

約数和(自身を含む): 381265920

約数和(自身を除く): 224527000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 383, 520, 766, 787, 1532, 1574, 1915, 3064, 3148, 3830, 3935, 4979, 6296, 7660, 7870, 9958, 10231, 15320, 15740, 19916, 20462, 24895, 31480, 39832, 40924, 49790, 51155, 81848, 99580, 102310, 199160, 204620, 301421, 409240, 602842, 1205684, 1507105, 2411368, 3014210, 3918473, 6028420, 7836946, 12056840, 15673892, 19592365, 31347784, 39184730, 78369460, 156738920]

約数ペア:

[(1, 156738920), (2, 78369460), (4, 39184730), (5, 31347784), (8, 19592365), (10, 15673892), (13, 12056840), (20, 7836946), (26, 6028420), (40, 3918473), (52, 3014210), (65, 2411368), (104, 1507105), (130, 1205684), (260, 602842), (383, 409240), (520, 301421), (766, 204620), (787, 199160), (1532, 102310), (1574, 99580), (1915, 81848), (3064, 51155), (3148, 49790), (3830, 40924), (3935, 39832), (4979, 31480), (6296, 24895), (7660, 20462), (7870, 19916), (9958, 15740), (10231, 15320)]