20113225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 36

約数和(自身を含む): 28118860

約数和(自身を除く): 8005635

約数列:

[1, 5, 11, 25, 55, 61, 109, 121, 275, 305, 545, 605, 671, 1199, 1525, 2725, 3025, 3355, 5995, 6649, 7381, 13189, 16775, 29975, 33245, 36905, 65945, 73139, 166225, 184525, 329725, 365695, 804529, 1828475, 4022645, 20113225]

約数ペア:

[(1, 20113225), (5, 4022645), (11, 1828475), (25, 804529), (55, 365695), (61, 329725), (109, 184525), (121, 166225), (275, 73139), (305, 65945), (545, 36905), (605, 33245), (671, 29975), (1199, 16775), (1525, 13189), (2725, 7381), (3025, 6649), (3355, 5995)]