42939380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2749}}^1$

素因数の和:2840

約数の個数: 48

約数和(自身を含む): 99792000

約数和(自身を除く): 56852620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 2749, 3124, 3905, 5498, 7810, 10996, 13745, 15620, 27490, 30239, 54980, 60478, 120956, 151195, 195179, 302390, 390358, 604780, 780716, 975895, 1951790, 2146969, 3903580, 4293938, 8587876, 10734845, 21469690, 42939380]

約数ペア:

[(1, 42939380), (2, 21469690), (4, 10734845), (5, 8587876), (10, 4293938), (11, 3903580), (20, 2146969), (22, 1951790), (44, 975895), (55, 780716), (71, 604780), (110, 390358), (142, 302390), (220, 195179), (284, 151195), (355, 120956), (710, 60478), (781, 54980), (1420, 30239), (1562, 27490), (2749, 15620), (3124, 13745), (3905, 10996), (5498, 7810)]