12781600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1229}}^1$

素因数の和:1262

約数の個数: 72

約数和(自身を含む): 33630660

約数和(自身を除く): 20849060

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1229, 1300, 2080, 2458, 2600, 4916, 5200, 6145, 9832, 10400, 12290, 15977, 19664, 24580, 30725, 31954, 39328, 49160, 61450, 63908, 79885, 98320, 122900, 127816, 159770, 196640, 245800, 255632, 319540, 399425, 491600, 511264, 639080, 798850, 983200, 1278160, 1597700, 2556320, 3195400, 6390800, 12781600]

約数ペア:

[(1, 12781600), (2, 6390800), (4, 3195400), (5, 2556320), (8, 1597700), (10, 1278160), (13, 983200), (16, 798850), (20, 639080), (25, 511264), (26, 491600), (32, 399425), (40, 319540), (50, 255632), (52, 245800), (65, 196640), (80, 159770), (100, 127816), (104, 122900), (130, 98320), (160, 79885), (200, 63908), (208, 61450), (260, 49160), (325, 39328), (400, 31954), (416, 30725), (520, 24580), (650, 19664), (800, 15977), (1040, 12290), (1229, 10400), (1300, 9832), (2080, 6145), (2458, 5200), (2600, 4916)]