20617850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1973}}^1$

素因数の和:2015

約数の個数: 48

約数和(自身を含む): 44059680

約数和(自身を除く): 23441830

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 190, 209, 275, 418, 475, 550, 950, 1045, 1973, 2090, 3946, 5225, 9865, 10450, 19730, 21703, 37487, 43406, 49325, 74974, 98650, 108515, 187435, 217030, 374870, 412357, 542575, 824714, 937175, 1085150, 1874350, 2061785, 4123570, 10308925, 20617850]

約数ペア:

[(1, 20617850), (2, 10308925), (5, 4123570), (10, 2061785), (11, 1874350), (19, 1085150), (22, 937175), (25, 824714), (38, 542575), (50, 412357), (55, 374870), (95, 217030), (110, 187435), (190, 108515), (209, 98650), (275, 74974), (418, 49325), (475, 43406), (550, 37487), (950, 21703), (1045, 19730), (1973, 10450), (2090, 9865), (3946, 5225)]