40485625

素因数分解:

$5^4\times {\mathrm{211}}^1\times {\mathrm{307}}^1$

素因数の和:538

約数の個数: 20

約数和(自身を含む): 50996176

約数和(自身を除く): 10510551

約数列:

[1, 5, 25, 125, 211, 307, 625, 1055, 1535, 5275, 7675, 26375, 38375, 64777, 131875, 191875, 323885, 1619425, 8097125, 40485625]

約数ペア:

[(1, 40485625), (5, 8097125), (25, 1619425), (125, 323885), (211, 191875), (307, 131875), (625, 64777), (1055, 38375), (1535, 26375), (5275, 7675)]