25380580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{66791}}^1$

素因数の和:66819

約数の個数: 24

約数和(自身を含む): 56105280

約数和(自身を除く): 30724700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 66791, 133582, 267164, 333955, 667910, 1269029, 1335820, 2538058, 5076116, 6345145, 12690290, 25380580]

約数ペア:

[(1, 25380580), (2, 12690290), (4, 6345145), (5, 5076116), (10, 2538058), (19, 1335820), (20, 1269029), (38, 667910), (76, 333955), (95, 267164), (190, 133582), (380, 66791)]