390785875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1609}}^1$

素因数の和:1720

約数の個数: 32

約数和(自身を含む): 512366400

約数和(自身を除く): 121580525

約数列:

[1, 5, 25, 29, 67, 125, 145, 335, 725, 1609, 1675, 1943, 3625, 8045, 8375, 9715, 40225, 46661, 48575, 107803, 201125, 233305, 242875, 539015, 1166525, 2695075, 3126287, 5832625, 13475375, 15631435, 78157175, 390785875]

約数ペア:

[(1, 390785875), (5, 78157175), (25, 15631435), (29, 13475375), (67, 5832625), (125, 3126287), (145, 2695075), (335, 1166525), (725, 539015), (1609, 242875), (1675, 233305), (1943, 201125), (3625, 107803), (8045, 48575), (8375, 46661), (9715, 40225)]