28275775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{449}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 38502000

約数和(自身を除く): 10226225

約数列:

[1, 5, 11, 25, 55, 229, 275, 449, 1145, 2245, 2519, 4939, 5725, 11225, 12595, 24695, 62975, 102821, 123475, 514105, 1131031, 2570525, 5655155, 28275775]

約数ペア:

[(1, 28275775), (5, 5655155), (11, 2570525), (25, 1131031), (55, 514105), (229, 123475), (275, 102821), (449, 62975), (1145, 24695), (2245, 12595), (2519, 11225), (4939, 5725)]