396642460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1\times {\mathrm{977}}^1$

素因数の和:1422

約数の個数: 48

約数和(自身を含む): 851751936

約数和(自身を除く): 455109476

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 383, 530, 766, 977, 1060, 1532, 1915, 1954, 3830, 3908, 4885, 7660, 9770, 19540, 20299, 40598, 51781, 81196, 101495, 103562, 202990, 207124, 258905, 374191, 405980, 517810, 748382, 1035620, 1496764, 1870955, 3741910, 7483820, 19832123, 39664246, 79328492, 99160615, 198321230, 396642460]

約数ペア:

[(1, 396642460), (2, 198321230), (4, 99160615), (5, 79328492), (10, 39664246), (20, 19832123), (53, 7483820), (106, 3741910), (212, 1870955), (265, 1496764), (383, 1035620), (530, 748382), (766, 517810), (977, 405980), (1060, 374191), (1532, 258905), (1915, 207124), (1954, 202990), (3830, 103562), (3908, 101495), (4885, 81196), (7660, 51781), (9770, 40598), (19540, 20299)]