20408475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{11831}}^1$

素因数の和:11867

約数の個数: 24

約数和(自身を含む): 35212032

約数和(自身を除く): 14803557

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 11831, 35493, 59155, 177465, 272113, 295775, 816339, 887325, 1360565, 4081695, 6802825, 20408475]

約数ペア:

[(1, 20408475), (3, 6802825), (5, 4081695), (15, 1360565), (23, 887325), (25, 816339), (69, 295775), (75, 272113), (115, 177465), (345, 59155), (575, 35493), (1725, 11831)]