398682790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{8609}}^1$

素因数の和:9048

約数の個数: 32

約数和(自身を含む): 784818720

約数和(自身を除く): 386135930

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 421, 842, 2105, 4210, 4631, 8609, 9262, 17218, 23155, 43045, 46310, 86090, 94699, 189398, 473495, 946990, 3624389, 7248778, 18121945, 36243890, 39868279, 79736558, 199341395, 398682790]

約数ペア:

[(1, 398682790), (2, 199341395), (5, 79736558), (10, 39868279), (11, 36243890), (22, 18121945), (55, 7248778), (110, 3624389), (421, 946990), (842, 473495), (2105, 189398), (4210, 94699), (4631, 86090), (8609, 46310), (9262, 43045), (17218, 23155)]