20728103425

素因数分解:

$5^2\times {\mathrm{137}}^1\times {\mathrm{887}}^1\times {\mathrm{6823}}^1$

素因数の和:7857

約数の個数: 24

約数和(自身を含む): 25923447936

約数和(自身を除く): 5195344511

約数列:

[1, 5, 25, 137, 685, 887, 3425, 4435, 6823, 22175, 34115, 121519, 170575, 607595, 934751, 3037975, 4673755, 6052001, 23368775, 30260005, 151300025, 829124137, 4145620685, 20728103425]

約数ペア:

[(1, 20728103425), (5, 4145620685), (25, 829124137), (137, 151300025), (685, 30260005), (887, 23368775), (3425, 6052001), (4435, 4673755), (6823, 3037975), (22175, 934751), (34115, 607595), (121519, 170575)]