278320130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{22391}}^1$

素因数の和:22522

約数の個数: 32

約数和(自身を含む): 551380608

約数和(自身を除く): 273060478

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 113, 226, 565, 1130, 1243, 2486, 6215, 12430, 22391, 44782, 111955, 223910, 246301, 492602, 1231505, 2463010, 2530183, 5060366, 12650915, 25301830, 27832013, 55664026, 139160065, 278320130]

約数ペア:

[(1, 278320130), (2, 139160065), (5, 55664026), (10, 27832013), (11, 25301830), (22, 12650915), (55, 5060366), (110, 2530183), (113, 2463010), (226, 1231505), (565, 492602), (1130, 246301), (1243, 223910), (2486, 111955), (6215, 44782), (12430, 22391)]