39378020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2521}}^1$

素因数の和:2612

約数の個数: 48

約数和(自身を含む): 91518336

約数和(自身を除く): 52140316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 2521, 3124, 3905, 5042, 7810, 10084, 12605, 15620, 25210, 27731, 50420, 55462, 110924, 138655, 178991, 277310, 357982, 554620, 715964, 894955, 1789910, 1968901, 3579820, 3937802, 7875604, 9844505, 19689010, 39378020]

約数ペア:

[(1, 39378020), (2, 19689010), (4, 9844505), (5, 7875604), (10, 3937802), (11, 3579820), (20, 1968901), (22, 1789910), (44, 894955), (55, 715964), (71, 554620), (110, 357982), (142, 277310), (220, 178991), (284, 138655), (355, 110924), (710, 55462), (781, 50420), (1420, 27731), (1562, 25210), (2521, 15620), (3124, 12605), (3905, 10084), (5042, 7810)]