390028366960

素因数分解:

$2^4\times 5^1\times {\mathrm{75991}}^1\times {\mathrm{64157}}^1$

素因数の和:140161

約数の個数: 40

約数和(自身を含む): 906842020896

約数和(自身を除く): 516813653936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 64157, 75991, 128314, 151982, 256628, 303964, 320785, 379955, 513256, 607928, 641570, 759910, 1026512, 1215856, 1283140, 1519820, 2566280, 3039640, 5132560, 6079280, 4875354587, 9750709174, 19501418348, 24376772935, 39002836696, 48753545870, 78005673392, 97507091740, 195014183480, 390028366960]

約数ペア:

[(1, 390028366960), (2, 195014183480), (4, 97507091740), (5, 78005673392), (8, 48753545870), (10, 39002836696), (16, 24376772935), (20, 19501418348), (40, 9750709174), (80, 4875354587), (64157, 6079280), (75991, 5132560), (128314, 3039640), (151982, 2566280), (256628, 1519820), (303964, 1283140), (320785, 1215856), (379955, 1026512), (513256, 759910), (607928, 641570)]