309920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 793800

約数和(自身を除く): 483880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 149, 160, 208, 260, 298, 416, 520, 596, 745, 1040, 1192, 1490, 1937, 2080, 2384, 2980, 3874, 4768, 5960, 7748, 9685, 11920, 15496, 19370, 23840, 30992, 38740, 61984, 77480, 154960, 309920]

約数ペア:

[(1, 309920), (2, 154960), (4, 77480), (5, 61984), (8, 38740), (10, 30992), (13, 23840), (16, 19370), (20, 15496), (26, 11920), (32, 9685), (40, 7748), (52, 5960), (65, 4768), (80, 3874), (104, 2980), (130, 2384), (149, 2080), (160, 1937), (208, 1490), (260, 1192), (298, 1040), (416, 745), (520, 596)]