20521920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{21377}}^1$

素因数の和:21397

約数の個数: 56

約数和(自身を含む): 65160144

約数和(自身を除く): 44638224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 21377, 42754, 64131, 85508, 106885, 128262, 171016, 213770, 256524, 320655, 342032, 427540, 513048, 641310, 684064, 855080, 1026096, 1282620, 1368128, 1710160, 2052192, 2565240, 3420320, 4104384, 5130480, 6840640, 10260960, 20521920]

約数ペア:

[(1, 20521920), (2, 10260960), (3, 6840640), (4, 5130480), (5, 4104384), (6, 3420320), (8, 2565240), (10, 2052192), (12, 1710160), (15, 1368128), (16, 1282620), (20, 1026096), (24, 855080), (30, 684064), (32, 641310), (40, 513048), (48, 427540), (60, 342032), (64, 320655), (80, 256524), (96, 213770), (120, 171016), (160, 128262), (192, 106885), (240, 85508), (320, 64131), (480, 42754), (960, 21377)]