164047220

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{19031}}^1$

素因数の和:19471

約数の個数: 24

約数和(自身を含む): 345316608

約数和(自身を除く): 181269388

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 19031, 38062, 76124, 95155, 190310, 380620, 8202361, 16404722, 32809444, 41011805, 82023610, 164047220]

約数ペア:

[(1, 164047220), (2, 82023610), (4, 41011805), (5, 32809444), (10, 16404722), (20, 8202361), (431, 380620), (862, 190310), (1724, 95155), (2155, 76124), (4310, 38062), (8620, 19031)]