20587460

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 44755200

約数和(自身を除く): 24167740

約数列:

[1, 2, 4, 5, 10, 20, 59, 73, 118, 146, 236, 239, 292, 295, 365, 478, 590, 730, 956, 1180, 1195, 1460, 2390, 4307, 4780, 8614, 14101, 17228, 17447, 21535, 28202, 34894, 43070, 56404, 69788, 70505, 86140, 87235, 141010, 174470, 282020, 348940, 1029373, 2058746, 4117492, 5146865, 10293730, 20587460]

約数ペア:

[(1, 20587460), (2, 10293730), (4, 5146865), (5, 4117492), (10, 2058746), (20, 1029373), (59, 348940), (73, 282020), (118, 174470), (146, 141010), (236, 87235), (239, 86140), (292, 70505), (295, 69788), (365, 56404), (478, 43070), (590, 34894), (730, 28202), (956, 21535), (1180, 17447), (1195, 17228), (1460, 14101), (2390, 8614), (4307, 4780)]