20976070

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 38810016

約数和(自身を除く): 17833946

約数列:

[1, 2, 5, 10, 61, 122, 137, 251, 274, 305, 502, 610, 685, 1255, 1370, 2510, 8357, 15311, 16714, 30622, 34387, 41785, 68774, 76555, 83570, 153110, 171935, 343870, 2097607, 4195214, 10488035, 20976070]

約数ペア:

[(1, 20976070), (2, 10488035), (5, 4195214), (10, 2097607), (61, 343870), (122, 171935), (137, 153110), (251, 83570), (274, 76555), (305, 68774), (502, 41785), (610, 34387), (685, 30622), (1255, 16714), (1370, 15311), (2510, 8357)]