842000

素因数分解:

$2^4\times 5^3\times {\mathrm{421}}^1$

素因数の和:444

約数の個数: 40

約数和(自身を含む): 2040792

約数和(自身を除く): 1198792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 421, 500, 842, 1000, 1684, 2000, 2105, 3368, 4210, 6736, 8420, 10525, 16840, 21050, 33680, 42100, 52625, 84200, 105250, 168400, 210500, 421000, 842000]

約数ペア:

[(1, 842000), (2, 421000), (4, 210500), (5, 168400), (8, 105250), (10, 84200), (16, 52625), (20, 42100), (25, 33680), (40, 21050), (50, 16840), (80, 10525), (100, 8420), (125, 6736), (200, 4210), (250, 3368), (400, 2105), (421, 2000), (500, 1684), (842, 1000)]