311950860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399937}}^1$

素因数の和:399962

約数の個数: 48

約数和(自身を含む): 940654176

約数和(自身を除く): 628703316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 399937, 799874, 1199811, 1599748, 1999685, 2399622, 3999370, 4799244, 5199181, 5999055, 7998740, 10398362, 11998110, 15597543, 20796724, 23996220, 25995905, 31195086, 51991810, 62390172, 77987715, 103983620, 155975430, 311950860]

約数ペア:

[(1, 311950860), (2, 155975430), (3, 103983620), (4, 77987715), (5, 62390172), (6, 51991810), (10, 31195086), (12, 25995905), (13, 23996220), (15, 20796724), (20, 15597543), (26, 11998110), (30, 10398362), (39, 7998740), (52, 5999055), (60, 5199181), (65, 4799244), (78, 3999370), (130, 2399622), (156, 1999685), (195, 1599748), (260, 1199811), (390, 799874), (780, 399937)]