213554920

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{22153}}^1$

素因数の和:22405

約数の個数: 32

約数和(自身を含む): 482514120

約数和(自身を除く): 268959200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 22153, 44306, 88612, 110765, 177224, 221530, 443060, 886120, 5338873, 10677746, 21355492, 26694365, 42710984, 53388730, 106777460, 213554920]

約数ペア:

[(1, 213554920), (2, 106777460), (4, 53388730), (5, 42710984), (8, 26694365), (10, 21355492), (20, 10677746), (40, 5338873), (241, 886120), (482, 443060), (964, 221530), (1205, 177224), (1928, 110765), (2410, 88612), (4820, 44306), (9640, 22153)]