251289560

素因数分解:

$2^3\times 5^1\times {\mathrm{739}}^1\times {\mathrm{8501}}^1$

素因数の和:9251

約数の個数: 32

約数和(自身を含む): 566233200

約数和(自身を除く): 314943640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 739, 1478, 2956, 3695, 5912, 7390, 8501, 14780, 17002, 29560, 34004, 42505, 68008, 85010, 170020, 340040, 6282239, 12564478, 25128956, 31411195, 50257912, 62822390, 125644780, 251289560]

約数ペア:

[(1, 251289560), (2, 125644780), (4, 62822390), (5, 50257912), (8, 31411195), (10, 25128956), (20, 12564478), (40, 6282239), (739, 340040), (1478, 170020), (2956, 85010), (3695, 68008), (5912, 42505), (7390, 34004), (8501, 29560), (14780, 17002)]