20025940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{401}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 46194624

約数和(自身を除く): 26168684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 401, 454, 802, 908, 1135, 1604, 2005, 2270, 2497, 4010, 4411, 4540, 4994, 8020, 8822, 9988, 12485, 17644, 22055, 24970, 44110, 49940, 88220, 91027, 182054, 364108, 455135, 910270, 1001297, 1820540, 2002594, 4005188, 5006485, 10012970, 20025940]

約数ペア:

[(1, 20025940), (2, 10012970), (4, 5006485), (5, 4005188), (10, 2002594), (11, 1820540), (20, 1001297), (22, 910270), (44, 455135), (55, 364108), (110, 182054), (220, 91027), (227, 88220), (401, 49940), (454, 44110), (802, 24970), (908, 22055), (1135, 17644), (1604, 12485), (2005, 9988), (2270, 8822), (2497, 8020), (4010, 4994), (4411, 4540)]