28489175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{613}}^1$

素因数の和:660

約数の個数: 36

約数和(自身を含む): 41798664

約数和(自身を除く): 13309489

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 169, 275, 325, 613, 715, 845, 1859, 3065, 3575, 4225, 6743, 7969, 9295, 15325, 33715, 39845, 46475, 87659, 103597, 168575, 199225, 438295, 517985, 1139567, 2191475, 2589925, 5697835, 28489175]

約数ペア:

[(1, 28489175), (5, 5697835), (11, 2589925), (13, 2191475), (25, 1139567), (55, 517985), (65, 438295), (143, 199225), (169, 168575), (275, 103597), (325, 87659), (613, 46475), (715, 39845), (845, 33715), (1859, 15325), (3065, 9295), (3575, 7969), (4225, 6743)]