19734940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{587}}^1$

素因数の和:678

約数の個数: 36

約数和(自身を含む): 42551208

約数和(自身を除く): 22816268

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 587, 820, 1174, 1681, 2348, 2935, 3362, 5870, 6724, 8405, 11740, 16810, 24067, 33620, 48134, 96268, 120335, 240670, 481340, 986747, 1973494, 3946988, 4933735, 9867470, 19734940]

約数ペア:

[(1, 19734940), (2, 9867470), (4, 4933735), (5, 3946988), (10, 1973494), (20, 986747), (41, 481340), (82, 240670), (164, 120335), (205, 96268), (410, 48134), (587, 33620), (820, 24067), (1174, 16810), (1681, 11740), (2348, 8405), (2935, 6724), (3362, 5870)]