71720140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{58787}}^1$

素因数の和:58857

約数の個数: 24

約数和(自身を含む): 153083952

約数和(自身を除く): 81363812

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 58787, 117574, 235148, 293935, 587870, 1175740, 3586007, 7172014, 14344028, 17930035, 35860070, 71720140]

約数ペア:

[(1, 71720140), (2, 35860070), (4, 17930035), (5, 14344028), (10, 7172014), (20, 3586007), (61, 1175740), (122, 587870), (244, 293935), (305, 235148), (610, 117574), (1220, 58787)]