20113980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1193}}^1$

素因数の和:1486

約数の個数: 48

約数和(自身を含む): 56566944

約数和(自身を除く): 36452964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 1124, 1193, 1405, 1686, 2386, 2810, 3372, 3579, 4215, 4772, 5620, 5965, 7158, 8430, 11930, 14316, 16860, 17895, 23860, 35790, 71580, 335233, 670466, 1005699, 1340932, 1676165, 2011398, 3352330, 4022796, 5028495, 6704660, 10056990, 20113980]

約数ペア:

[(1, 20113980), (2, 10056990), (3, 6704660), (4, 5028495), (5, 4022796), (6, 3352330), (10, 2011398), (12, 1676165), (15, 1340932), (20, 1005699), (30, 670466), (60, 335233), (281, 71580), (562, 35790), (843, 23860), (1124, 17895), (1193, 16860), (1405, 14316), (1686, 11930), (2386, 8430), (2810, 7158), (3372, 5965), (3579, 5620), (4215, 4772)]