38882440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13691}}^1$

素因数の和:13773

約数の個数: 32

約数和(自身を含む): 88724160

約数和(自身を除く): 49841720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 13691, 27382, 54764, 68455, 109528, 136910, 273820, 547640, 972061, 1944122, 3888244, 4860305, 7776488, 9720610, 19441220, 38882440]

約数ペア:

[(1, 38882440), (2, 19441220), (4, 9720610), (5, 7776488), (8, 4860305), (10, 3888244), (20, 1944122), (40, 972061), (71, 547640), (142, 273820), (284, 136910), (355, 109528), (568, 68455), (710, 54764), (1420, 27382), (2840, 13691)]