1684000

素因数分解:

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

素因数の和:446

約数の個数: 48

約数和(自身を含む): 4147416

約数和(自身を除く): 2463416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 421, 500, 800, 842, 1000, 1684, 2000, 2105, 3368, 4000, 4210, 6736, 8420, 10525, 13472, 16840, 21050, 33680, 42100, 52625, 67360, 84200, 105250, 168400, 210500, 336800, 421000, 842000, 1684000]

約数ペア:

[(1, 1684000), (2, 842000), (4, 421000), (5, 336800), (8, 210500), (10, 168400), (16, 105250), (20, 84200), (25, 67360), (32, 52625), (40, 42100), (50, 33680), (80, 21050), (100, 16840), (125, 13472), (160, 10525), (200, 8420), (250, 6736), (400, 4210), (421, 4000), (500, 3368), (800, 2105), (842, 2000), (1000, 1684)]