20513970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1181}}^1$

素因数の和:1387

約数の個数: 48

約数和(自身を含む): 53658072

約数和(自身を除く): 33144102

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 193, 386, 579, 965, 1158, 1181, 1737, 1930, 2362, 2895, 3474, 3543, 5790, 5905, 7086, 8685, 10629, 11810, 17370, 17715, 21258, 35430, 53145, 106290, 227933, 455866, 683799, 1139665, 1367598, 2051397, 2279330, 3418995, 4102794, 6837990, 10256985, 20513970]

約数ペア:

[(1, 20513970), (2, 10256985), (3, 6837990), (5, 4102794), (6, 3418995), (9, 2279330), (10, 2051397), (15, 1367598), (18, 1139665), (30, 683799), (45, 455866), (90, 227933), (193, 106290), (386, 53145), (579, 35430), (965, 21258), (1158, 17715), (1181, 17370), (1737, 11810), (1930, 10629), (2362, 8685), (2895, 7086), (3474, 5905), (3543, 5790)]