128465475

素因数分解:

$3^1\times 5^2\times {\mathrm{173}}^1\times {\mathrm{9901}}^1$

素因数の和:10087

約数の個数: 24

約数和(自身を含む): 213645552

約数和(自身を除く): 85180077

約数列:

[1, 3, 5, 15, 25, 75, 173, 519, 865, 2595, 4325, 9901, 12975, 29703, 49505, 148515, 247525, 742575, 1712873, 5138619, 8564365, 25693095, 42821825, 128465475]

約数ペア:

[(1, 128465475), (3, 42821825), (5, 25693095), (15, 8564365), (25, 5138619), (75, 1712873), (173, 742575), (519, 247525), (865, 148515), (2595, 49505), (4325, 29703), (9901, 12975)]