161004020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{217573}}^1$

素因数の和:217619

約数の個数: 24

約数和(自身を含む): 347248104

約数和(自身を除く): 186244084

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 217573, 435146, 870292, 1087865, 2175730, 4351460, 8050201, 16100402, 32200804, 40251005, 80502010, 161004020]

約数ペア:

[(1, 161004020), (2, 80502010), (4, 40251005), (5, 32200804), (10, 16100402), (20, 8050201), (37, 4351460), (74, 2175730), (148, 1087865), (185, 870292), (370, 435146), (740, 217573)]