28719240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21757}}^1$

素因数の和:21782

約数の個数: 64

約数和(自身を含む): 93994560

約数和(自身を除く): 65275320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 21757, 43514, 65271, 87028, 108785, 130542, 174056, 217570, 239327, 261084, 326355, 435140, 478654, 522168, 652710, 717981, 870280, 957308, 1196635, 1305420, 1435962, 1914616, 2393270, 2610840, 2871924, 3589905, 4786540, 5743848, 7179810, 9573080, 14359620, 28719240]

約数ペア:

[(1, 28719240), (2, 14359620), (3, 9573080), (4, 7179810), (5, 5743848), (6, 4786540), (8, 3589905), (10, 2871924), (11, 2610840), (12, 2393270), (15, 1914616), (20, 1435962), (22, 1305420), (24, 1196635), (30, 957308), (33, 870280), (40, 717981), (44, 652710), (55, 522168), (60, 478654), (66, 435140), (88, 326355), (110, 261084), (120, 239327), (132, 217570), (165, 174056), (220, 130542), (264, 108785), (330, 87028), (440, 65271), (660, 43514), (1320, 21757)]