20444560

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3079}}^1$

素因数の和:3175

約数の個数: 40

約数和(自身を含む): 48121920

約数和(自身を除く): 27677360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3079, 3320, 6158, 6640, 12316, 15395, 24632, 30790, 49264, 61580, 123160, 246320, 255557, 511114, 1022228, 1277785, 2044456, 2555570, 4088912, 5111140, 10222280, 20444560]

約数ペア:

[(1, 20444560), (2, 10222280), (4, 5111140), (5, 4088912), (8, 2555570), (10, 2044456), (16, 1277785), (20, 1022228), (40, 511114), (80, 255557), (83, 246320), (166, 123160), (332, 61580), (415, 49264), (664, 30790), (830, 24632), (1328, 15395), (1660, 12316), (3079, 6640), (3320, 6158)]