72721396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{20921}}^1$

素因数の和:21015

約数の個数: 24

約数和(自身を含む): 140595840

約数和(自身を除く): 67874444

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 20921, 41842, 83684, 230131, 460262, 920524, 1652759, 3305518, 6611036, 18180349, 36360698, 72721396]

約数ペア:

[(1, 72721396), (2, 36360698), (4, 18180349), (11, 6611036), (22, 3305518), (44, 1652759), (79, 920524), (158, 460262), (316, 230131), (869, 83684), (1738, 41842), (3476, 20921)]