210905680

素因数分解:

$2^4\times 5^1\times {\mathrm{619}}^1\times {\mathrm{4259}}^1$

素因数の和:4891

約数の個数: 40

約数和(自身を含む): 491263200

約数和(自身を除く): 280357520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 619, 1238, 2476, 3095, 4259, 4952, 6190, 8518, 9904, 12380, 17036, 21295, 24760, 34072, 42590, 49520, 68144, 85180, 170360, 340720, 2636321, 5272642, 10545284, 13181605, 21090568, 26363210, 42181136, 52726420, 105452840, 210905680]

約数ペア:

[(1, 210905680), (2, 105452840), (4, 52726420), (5, 42181136), (8, 26363210), (10, 21090568), (16, 13181605), (20, 10545284), (40, 5272642), (80, 2636321), (619, 340720), (1238, 170360), (2476, 85180), (3095, 68144), (4259, 49520), (4952, 42590), (6190, 34072), (8518, 24760), (9904, 21295), (12380, 17036)]