28117620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5039}}^1$

素因数の和:5085

約数の個数: 72

約数和(自身を含む): 88058880

約数和(自身を除く): 59941260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5039, 5580, 10078, 15117, 20156, 25195, 30234, 45351, 50390, 60468, 75585, 90702, 100780, 151170, 156209, 181404, 226755, 302340, 312418, 453510, 468627, 624836, 781045, 907020, 937254, 1405881, 1562090, 1874508, 2343135, 2811762, 3124180, 4686270, 5623524, 7029405, 9372540, 14058810, 28117620]

約数ペア:

[(1, 28117620), (2, 14058810), (3, 9372540), (4, 7029405), (5, 5623524), (6, 4686270), (9, 3124180), (10, 2811762), (12, 2343135), (15, 1874508), (18, 1562090), (20, 1405881), (30, 937254), (31, 907020), (36, 781045), (45, 624836), (60, 468627), (62, 453510), (90, 312418), (93, 302340), (124, 226755), (155, 181404), (180, 156209), (186, 151170), (279, 100780), (310, 90702), (372, 75585), (465, 60468), (558, 50390), (620, 45351), (930, 30234), (1116, 25195), (1395, 20156), (1860, 15117), (2790, 10078), (5039, 5580)]