28155240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:611

約数の個数: 96

約数和(自身を含む): 92200680

約数和(自身を除く): 64045440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 197, 360, 394, 397, 591, 788, 794, 985, 1182, 1191, 1576, 1588, 1773, 1970, 1985, 2364, 2382, 2955, 3176, 3546, 3573, 3940, 3970, 4728, 4764, 5910, 5955, 7092, 7146, 7880, 7940, 8865, 9528, 11820, 11910, 14184, 14292, 15880, 17730, 17865, 23640, 23820, 28584, 35460, 35730, 47640, 70920, 71460, 78209, 142920, 156418, 234627, 312836, 391045, 469254, 625672, 703881, 782090, 938508, 1173135, 1407762, 1564180, 1877016, 2346270, 2815524, 3128360, 3519405, 4692540, 5631048, 7038810, 9385080, 14077620, 28155240]

約数ペア:

[(1, 28155240), (2, 14077620), (3, 9385080), (4, 7038810), (5, 5631048), (6, 4692540), (8, 3519405), (9, 3128360), (10, 2815524), (12, 2346270), (15, 1877016), (18, 1564180), (20, 1407762), (24, 1173135), (30, 938508), (36, 782090), (40, 703881), (45, 625672), (60, 469254), (72, 391045), (90, 312836), (120, 234627), (180, 156418), (197, 142920), (360, 78209), (394, 71460), (397, 70920), (591, 47640), (788, 35730), (794, 35460), (985, 28584), (1182, 23820), (1191, 23640), (1576, 17865), (1588, 17730), (1773, 15880), (1970, 14292), (1985, 14184), (2364, 11910), (2382, 11820), (2955, 9528), (3176, 8865), (3546, 7940), (3573, 7880), (3940, 7146), (3970, 7092), (4728, 5955), (4764, 5910)]