138775180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97729}}^1$

素因数の和:97809

約数の個数: 24

約数和(自身を含む): 295535520

約数和(自身を除く): 156760340

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 97729, 195458, 390916, 488645, 977290, 1954580, 6938759, 13877518, 27755036, 34693795, 69387590, 138775180]

約数ペア:

[(1, 138775180), (2, 69387590), (4, 34693795), (5, 27755036), (10, 13877518), (20, 6938759), (71, 1954580), (142, 977290), (284, 488645), (355, 390916), (710, 195458), (1420, 97729)]