81316250

素因数分解:

$2^1\times 5^4\times {\mathrm{65053}}^1$

素因数の和:65075

約数の個数: 20

約数和(自身を含む): 152421522

約数和(自身を除く): 71105272

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 65053, 130106, 325265, 650530, 1626325, 3252650, 8131625, 16263250, 40658125, 81316250]

約数ペア:

[(1, 81316250), (2, 40658125), (5, 16263250), (10, 8131625), (25, 3252650), (50, 1626325), (125, 650530), (250, 325265), (625, 130106), (1250, 65053)]