257923920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1074683}}^1$

素因数の和:1074699

約数の個数: 40

約数和(自身を含む): 799564896

約数和(自身を除く): 541640976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1074683, 2149366, 3224049, 4298732, 5373415, 6448098, 8597464, 10746830, 12896196, 16120245, 17194928, 21493660, 25792392, 32240490, 42987320, 51584784, 64480980, 85974640, 128961960, 257923920]

約数ペア:

[(1, 257923920), (2, 128961960), (3, 85974640), (4, 64480980), (5, 51584784), (6, 42987320), (8, 32240490), (10, 25792392), (12, 21493660), (15, 17194928), (16, 16120245), (20, 12896196), (24, 10746830), (30, 8597464), (40, 6448098), (48, 5373415), (60, 4298732), (80, 3224049), (120, 2149366), (240, 1074683)]