20333440

素因数分解:

$2^7\times 5^1\times {\mathrm{31771}}^1$

素因数の和:31790

約数の個数: 32

約数和(自身を含む): 48611160

約数和(自身を除く): 28277720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31771, 63542, 127084, 158855, 254168, 317710, 508336, 635420, 1016672, 1270840, 2033344, 2541680, 4066688, 5083360, 10166720, 20333440]

約数ペア:

[(1, 20333440), (2, 10166720), (4, 5083360), (5, 4066688), (8, 2541680), (10, 2033344), (16, 1270840), (20, 1016672), (32, 635420), (40, 508336), (64, 317710), (80, 254168), (128, 158855), (160, 127084), (320, 63542), (640, 31771)]