78709180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5039}}^1$

素因数の和:5130

約数の個数: 48

約数和(自身を含む): 182891520

約数和(自身を除く): 104182340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 5039, 7810, 10078, 15620, 20156, 25195, 50390, 55429, 100780, 110858, 221716, 277145, 357769, 554290, 715538, 1108580, 1431076, 1788845, 3577690, 3935459, 7155380, 7870918, 15741836, 19677295, 39354590, 78709180]

約数ペア:

[(1, 78709180), (2, 39354590), (4, 19677295), (5, 15741836), (10, 7870918), (11, 7155380), (20, 3935459), (22, 3577690), (44, 1788845), (55, 1431076), (71, 1108580), (110, 715538), (142, 554290), (220, 357769), (284, 277145), (355, 221716), (710, 110858), (781, 100780), (1420, 55429), (1562, 50390), (3124, 25195), (3905, 20156), (5039, 15620), (7810, 10078)]