25267360

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2093

約数の個数: 48

約数和(自身を含む): 60480000

約数和(自身を除く): 35212640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 1999, 2528, 3160, 3998, 6320, 7996, 9995, 12640, 15992, 19990, 31984, 39980, 63968, 79960, 157921, 159920, 315842, 319840, 631684, 789605, 1263368, 1579210, 2526736, 3158420, 5053472, 6316840, 12633680, 25267360]

約数ペア:

[(1, 25267360), (2, 12633680), (4, 6316840), (5, 5053472), (8, 3158420), (10, 2526736), (16, 1579210), (20, 1263368), (32, 789605), (40, 631684), (79, 319840), (80, 315842), (158, 159920), (160, 157921), (316, 79960), (395, 63968), (632, 39980), (790, 31984), (1264, 19990), (1580, 15992), (1999, 12640), (2528, 9995), (3160, 7996), (3998, 6320)]