28290470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217619}}^1$

素因数の和:217639

約数の個数: 16

約数和(自身を含む): 54840240

約数和(自身を除く): 26549770

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 217619, 435238, 1088095, 2176190, 2829047, 5658094, 14145235, 28290470]

約数ペア:

[(1, 28290470), (2, 14145235), (5, 5658094), (10, 2829047), (13, 2176190), (26, 1088095), (65, 435238), (130, 217619)]