28137850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 57230712

約数和(自身を除く): 29092862

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 73, 130, 146, 325, 365, 593, 650, 730, 949, 1186, 1825, 1898, 2965, 3650, 4745, 5930, 7709, 9490, 14825, 15418, 23725, 29650, 38545, 43289, 47450, 77090, 86578, 192725, 216445, 385450, 432890, 562757, 1082225, 1125514, 2164450, 2813785, 5627570, 14068925, 28137850]

約数ペア:

[(1, 28137850), (2, 14068925), (5, 5627570), (10, 2813785), (13, 2164450), (25, 1125514), (26, 1082225), (50, 562757), (65, 432890), (73, 385450), (130, 216445), (146, 192725), (325, 86578), (365, 77090), (593, 47450), (650, 43289), (730, 38545), (949, 29650), (1186, 23725), (1825, 15418), (1898, 14825), (2965, 9490), (3650, 7709), (4745, 5930)]