220104520

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{11299}}^1$

素因数の和:11797

約数の個数: 32

約数和(自身を含む): 496296000

約数和(自身を除く): 276191480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 9740, 11299, 19480, 22598, 45196, 56495, 90392, 112990, 225980, 451960, 5502613, 11005226, 22010452, 27513065, 44020904, 55026130, 110052260, 220104520]

約数ペア:

[(1, 220104520), (2, 110052260), (4, 55026130), (5, 44020904), (8, 27513065), (10, 22010452), (20, 11005226), (40, 5502613), (487, 451960), (974, 225980), (1948, 112990), (2435, 90392), (3896, 56495), (4870, 45196), (9740, 22598), (11299, 19480)]