20645220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7321}}^1$

素因数の和:7380

約数の個数: 48

約数和(自身を含む): 59044608

約数和(自身を除く): 38399388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7321, 14642, 21963, 29284, 36605, 43926, 73210, 87852, 109815, 146420, 219630, 344087, 439260, 688174, 1032261, 1376348, 1720435, 2064522, 3440870, 4129044, 5161305, 6881740, 10322610, 20645220]

約数ペア:

[(1, 20645220), (2, 10322610), (3, 6881740), (4, 5161305), (5, 4129044), (6, 3440870), (10, 2064522), (12, 1720435), (15, 1376348), (20, 1032261), (30, 688174), (47, 439260), (60, 344087), (94, 219630), (141, 146420), (188, 109815), (235, 87852), (282, 73210), (470, 43926), (564, 36605), (705, 29284), (940, 21963), (1410, 14642), (2820, 7321)]