28343525

素因数分解:

$5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1087}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 40473600

約数和(自身を除く): 12130075

約数列:

[1, 5, 7, 25, 35, 149, 175, 745, 1043, 1087, 3725, 5215, 5435, 7609, 26075, 27175, 38045, 161963, 190225, 809815, 1133741, 4049075, 5668705, 28343525]

約数ペア:

[(1, 28343525), (5, 5668705), (7, 4049075), (25, 1133741), (35, 809815), (149, 190225), (175, 161963), (745, 38045), (1043, 27175), (1087, 26075), (3725, 7609), (5215, 5435)]