28125625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{4091}}^1$

素因数の和:4122

約数の個数: 20

約数和(自身を含む): 38350224

約数和(自身を除く): 10224599

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 4091, 6875, 20455, 45001, 102275, 225005, 511375, 1125025, 2556875, 5625125, 28125625]

約数ペア:

[(1, 28125625), (5, 5625125), (11, 2556875), (25, 1125025), (55, 511375), (125, 225005), (275, 102275), (625, 45001), (1375, 20455), (4091, 6875)]