40428160

素因数分解:

$2^7\times 5^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 97461000

約数和(自身を除く): 57032840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 320, 349, 362, 640, 698, 724, 905, 1396, 1448, 1745, 1810, 2792, 2896, 3490, 3620, 5584, 5792, 6980, 7240, 11168, 11584, 13960, 14480, 22336, 23168, 27920, 28960, 44672, 55840, 57920, 63169, 111680, 115840, 126338, 223360, 252676, 315845, 505352, 631690, 1010704, 1263380, 2021408, 2526760, 4042816, 5053520, 8085632, 10107040, 20214080, 40428160]

約数ペア:

[(1, 40428160), (2, 20214080), (4, 10107040), (5, 8085632), (8, 5053520), (10, 4042816), (16, 2526760), (20, 2021408), (32, 1263380), (40, 1010704), (64, 631690), (80, 505352), (128, 315845), (160, 252676), (181, 223360), (320, 126338), (349, 115840), (362, 111680), (640, 63169), (698, 57920), (724, 55840), (905, 44672), (1396, 28960), (1448, 27920), (1745, 23168), (1810, 22336), (2792, 14480), (2896, 13960), (3490, 11584), (3620, 11168), (5584, 7240), (5792, 6980)]