28753790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{263}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 57945888

約数和(自身を除く): 29192098

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 263, 290, 377, 526, 754, 841, 1315, 1682, 1885, 2630, 3419, 3770, 4205, 6838, 7627, 8410, 10933, 15254, 17095, 21866, 34190, 38135, 54665, 76270, 99151, 109330, 198302, 221183, 442366, 495755, 991510, 1105915, 2211830, 2875379, 5750758, 14376895, 28753790]

約数ペア:

[(1, 28753790), (2, 14376895), (5, 5750758), (10, 2875379), (13, 2211830), (26, 1105915), (29, 991510), (58, 495755), (65, 442366), (130, 221183), (145, 198302), (263, 109330), (290, 99151), (377, 76270), (526, 54665), (754, 38135), (841, 34190), (1315, 21866), (1682, 17095), (1885, 15254), (2630, 10933), (3419, 8410), (3770, 7627), (4205, 6838)]