28853680

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3571}}^1$

素因数の和:3685

約数の個数: 40

約数和(自身を含む): 67767984

約数和(自身を除く): 38914304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 3571, 4040, 7142, 8080, 14284, 17855, 28568, 35710, 57136, 71420, 142840, 285680, 360671, 721342, 1442684, 1803355, 2885368, 3606710, 5770736, 7213420, 14426840, 28853680]

約数ペア:

[(1, 28853680), (2, 14426840), (4, 7213420), (5, 5770736), (8, 3606710), (10, 2885368), (16, 1803355), (20, 1442684), (40, 721342), (80, 360671), (101, 285680), (202, 142840), (404, 71420), (505, 57136), (808, 35710), (1010, 28568), (1616, 17855), (2020, 14284), (3571, 8080), (4040, 7142)]