2028478465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1\times {\mathrm{1009}}^1$

素因数の和:1381

約数の個数: 32

約数和(自身を含む): 2654134560

約数和(自身を除く): 625656095

約数列:

[1, 5, 13, 65, 157, 197, 785, 985, 1009, 2041, 2561, 5045, 10205, 12805, 13117, 30929, 65585, 154645, 158413, 198773, 402077, 792065, 993865, 2010385, 2059369, 2584049, 10296845, 12920245, 31207361, 156036805, 405695693, 2028478465]

約数ペア:

[(1, 2028478465), (5, 405695693), (13, 156036805), (65, 31207361), (157, 12920245), (197, 10296845), (785, 2584049), (985, 2059369), (1009, 2010385), (2041, 993865), (2561, 792065), (5045, 402077), (10205, 198773), (12805, 158413), (13117, 154645), (30929, 65585)]