28589375

素因数分解:

$5^4\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:476

約数の個数: 20

約数和(自身を含む): 36082200

約数和(自身を除く): 7492825

約数列:

[1, 5, 25, 125, 149, 307, 625, 745, 1535, 3725, 7675, 18625, 38375, 45743, 93125, 191875, 228715, 1143575, 5717875, 28589375]

約数ペア:

[(1, 28589375), (5, 5717875), (25, 1143575), (125, 228715), (149, 191875), (307, 93125), (625, 45743), (745, 38375), (1535, 18625), (3725, 7675)]