1972375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:555

約数の個数: 16

約数和(自身を含む): 2545920

約数和(自身を除く): 573545

約数列:

[1, 5, 25, 31, 125, 155, 509, 775, 2545, 3875, 12725, 15779, 63625, 78895, 394475, 1972375]

約数ペア:

[(1, 1972375), (5, 394475), (25, 78895), (31, 63625), (125, 15779), (155, 12725), (509, 3875), (775, 2545)]