1389665360

素因数分解:

$2^4\times 5^1\times {\mathrm{17370817}}^1$

素因数の和:17370830

約数の個数: 20

約数和(自身を含む): 3230972148

約数和(自身を除く): 1841306788

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17370817, 34741634, 69483268, 86854085, 138966536, 173708170, 277933072, 347416340, 694832680, 1389665360]

約数ペア:

[(1, 1389665360), (2, 694832680), (4, 347416340), (5, 277933072), (8, 173708170), (10, 138966536), (16, 86854085), (20, 69483268), (40, 34741634), (80, 17370817)]