28305225

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9677}}^1$

素因数の和:9706

約数の個数: 36

約数和(自身を含む): 54603276

約数和(自身を除く): 26298051

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9677, 29031, 48385, 87093, 125801, 145155, 241925, 377403, 435465, 629005, 725775, 1132209, 1887015, 2177325, 3145025, 5661045, 9435075, 28305225]

約数ペア:

[(1, 28305225), (3, 9435075), (5, 5661045), (9, 3145025), (13, 2177325), (15, 1887015), (25, 1132209), (39, 725775), (45, 629005), (65, 435465), (75, 377403), (117, 241925), (195, 145155), (225, 125801), (325, 87093), (585, 48385), (975, 29031), (2925, 9677)]