387971975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{1861}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 498718080

約数和(自身を除く): 110746105

約数列:

[1, 5, 25, 31, 155, 269, 775, 1345, 1861, 6725, 8339, 9305, 41695, 46525, 57691, 208475, 288455, 500609, 1442275, 2503045, 12515225, 15518879, 77594395, 387971975]

約数ペア:

[(1, 387971975), (5, 77594395), (25, 15518879), (31, 12515225), (155, 2503045), (269, 1442275), (775, 500609), (1345, 288455), (1861, 208475), (6725, 57691), (8339, 46525), (9305, 41695)]