20282480

素因数分解:

$2^4\times 5^1\times {\mathrm{253531}}^1$

素因数の和:253544

約数の個数: 20

約数和(自身を含む): 47156952

約数和(自身を除く): 26874472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253531, 507062, 1014124, 1267655, 2028248, 2535310, 4056496, 5070620, 10141240, 20282480]

約数ペア:

[(1, 20282480), (2, 10141240), (4, 5070620), (5, 4056496), (8, 2535310), (10, 2028248), (16, 1267655), (20, 1014124), (40, 507062), (80, 253531)]