81497665

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1\times {\mathrm{653}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 99277200

約数和(自身を除く): 17779535

約数列:

[1, 5, 109, 229, 545, 653, 1145, 3265, 24961, 71177, 124805, 149537, 355885, 747685, 16299533, 81497665]

約数ペア:

[(1, 81497665), (5, 16299533), (109, 747685), (229, 355885), (545, 149537), (653, 124805), (1145, 71177), (3265, 24961)]