421000

素因数分解:

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

素因数の和:442

約数の個数: 32

約数和(自身を含む): 987480

約数和(自身を除く): 566480

約数列:

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

約数ペア:

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