8899940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 21552384

約数和(自身を除く): 12652444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 421, 604, 755, 842, 1057, 1510, 1684, 2105, 2114, 2947, 3020, 4210, 4228, 5285, 5894, 8420, 10570, 11788, 14735, 21140, 29470, 58940, 63571, 127142, 254284, 317855, 444997, 635710, 889994, 1271420, 1779988, 2224985, 4449970, 8899940]

約数ペア:

[(1, 8899940), (2, 4449970), (4, 2224985), (5, 1779988), (7, 1271420), (10, 889994), (14, 635710), (20, 444997), (28, 317855), (35, 254284), (70, 127142), (140, 63571), (151, 58940), (302, 29470), (421, 21140), (604, 14735), (755, 11788), (842, 10570), (1057, 8420), (1510, 5894), (1684, 5285), (2105, 4228), (2114, 4210), (2947, 3020)]