20505014720

素因数分解:

$2^6\times 5^1\times {\mathrm{64078171}}^1$

素因数の和:64078188

約数の個数: 28

約数和(自身を含む): 48827567064

約数和(自身を除く): 28322552344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64078171, 128156342, 256312684, 320390855, 512625368, 640781710, 1025250736, 1281563420, 2050501472, 2563126840, 4101002944, 5126253680, 10252507360, 20505014720]

約数ペア:

[(1, 20505014720), (2, 10252507360), (4, 5126253680), (5, 4101002944), (8, 2563126840), (10, 2050501472), (16, 1281563420), (20, 1025250736), (32, 640781710), (40, 512625368), (64, 320390855), (80, 256312684), (160, 128156342), (320, 64078171)]