19471250

素因数分解:

$2^1\times 5^4\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 40

約数和(自身を含む): 37572348

約数和(自身を除く): 18101098

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 125, 185, 250, 370, 421, 625, 842, 925, 1250, 1850, 2105, 4210, 4625, 9250, 10525, 15577, 21050, 23125, 31154, 46250, 52625, 77885, 105250, 155770, 263125, 389425, 526250, 778850, 1947125, 3894250, 9735625, 19471250]

約数ペア:

[(1, 19471250), (2, 9735625), (5, 3894250), (10, 1947125), (25, 778850), (37, 526250), (50, 389425), (74, 263125), (125, 155770), (185, 105250), (250, 77885), (370, 52625), (421, 46250), (625, 31154), (842, 23125), (925, 21050), (1250, 15577), (1850, 10525), (2105, 9250), (4210, 4625)]