28457920

素因数分解:

$2^6\times 5^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:917

約数の個数: 56

約数和(自身を含む): 68451984

約数和(自身を除く): 39994064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 160, 226, 320, 452, 565, 787, 904, 1130, 1574, 1808, 2260, 3148, 3616, 3935, 4520, 6296, 7232, 7870, 9040, 12592, 15740, 18080, 25184, 31480, 36160, 50368, 62960, 88931, 125920, 177862, 251840, 355724, 444655, 711448, 889310, 1422896, 1778620, 2845792, 3557240, 5691584, 7114480, 14228960, 28457920]

約数ペア:

[(1, 28457920), (2, 14228960), (4, 7114480), (5, 5691584), (8, 3557240), (10, 2845792), (16, 1778620), (20, 1422896), (32, 889310), (40, 711448), (64, 444655), (80, 355724), (113, 251840), (160, 177862), (226, 125920), (320, 88931), (452, 62960), (565, 50368), (787, 36160), (904, 31480), (1130, 25184), (1574, 18080), (1808, 15740), (2260, 12592), (3148, 9040), (3616, 7870), (3935, 7232), (4520, 6296)]