31281320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2377}}^1$

素因数の和:2442

約数の個数: 64

約数和(自身を含む): 82183680

約数和(自身を除く): 50902360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1645, 1880, 2377, 2632, 3290, 4754, 6580, 9508, 11885, 13160, 16639, 19016, 23770, 33278, 47540, 66556, 83195, 95080, 111719, 133112, 166390, 223438, 332780, 446876, 558595, 665560, 782033, 893752, 1117190, 1564066, 2234380, 3128132, 3910165, 4468760, 6256264, 7820330, 15640660, 31281320]

約数ペア:

[(1, 31281320), (2, 15640660), (4, 7820330), (5, 6256264), (7, 4468760), (8, 3910165), (10, 3128132), (14, 2234380), (20, 1564066), (28, 1117190), (35, 893752), (40, 782033), (47, 665560), (56, 558595), (70, 446876), (94, 332780), (140, 223438), (188, 166390), (235, 133112), (280, 111719), (329, 95080), (376, 83195), (470, 66556), (658, 47540), (940, 33278), (1316, 23770), (1645, 19016), (1880, 16639), (2377, 13160), (2632, 11885), (3290, 9508), (4754, 6580)]