28948880

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4957}}^1$

素因数の和:5043

約数の個数: 40

約数和(自身を含む): 68241912

約数和(自身を除く): 39293032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 4957, 5840, 9914, 19828, 24785, 39656, 49570, 79312, 99140, 198280, 361861, 396560, 723722, 1447444, 1809305, 2894888, 3618610, 5789776, 7237220, 14474440, 28948880]

約数ペア:

[(1, 28948880), (2, 14474440), (4, 7237220), (5, 5789776), (8, 3618610), (10, 2894888), (16, 1809305), (20, 1447444), (40, 723722), (73, 396560), (80, 361861), (146, 198280), (292, 99140), (365, 79312), (584, 49570), (730, 39656), (1168, 24785), (1460, 19828), (2920, 9914), (4957, 5840)]