40639360

素因数分解:

$2^7\times 5^1\times {\mathrm{63499}}^1$

素因数の和:63518

約数の個数: 32

約数和(自身を含む): 97155000

約数和(自身を除く): 56515640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 63499, 126998, 253996, 317495, 507992, 634990, 1015984, 1269980, 2031968, 2539960, 4063936, 5079920, 8127872, 10159840, 20319680, 40639360]

約数ペア:

[(1, 40639360), (2, 20319680), (4, 10159840), (5, 8127872), (8, 5079920), (10, 4063936), (16, 2539960), (20, 2031968), (32, 1269980), (40, 1015984), (64, 634990), (80, 507992), (128, 317495), (160, 253996), (320, 126998), (640, 63499)]