40528640

素因数分解:

$2^8\times 5^1\times {\mathrm{31663}}^1$

素因数の和:31684

約数の個数: 36

約数和(自身を含む): 97081824

約数和(自身を除く): 56553184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 31663, 63326, 126652, 158315, 253304, 316630, 506608, 633260, 1013216, 1266520, 2026432, 2533040, 4052864, 5066080, 8105728, 10132160, 20264320, 40528640]

約数ペア:

[(1, 40528640), (2, 20264320), (4, 10132160), (5, 8105728), (8, 5066080), (10, 4052864), (16, 2533040), (20, 2026432), (32, 1266520), (40, 1013216), (64, 633260), (80, 506608), (128, 316630), (160, 253304), (256, 158315), (320, 126652), (640, 63326), (1280, 31663)]