20281050

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 56871360

約数和(自身を除く): 36590310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 83, 90, 135, 150, 166, 181, 225, 249, 270, 362, 415, 450, 498, 543, 675, 747, 830, 905, 1086, 1245, 1350, 1494, 1629, 1810, 2075, 2241, 2490, 2715, 3258, 3735, 4150, 4482, 4525, 4887, 5430, 6225, 7470, 8145, 9050, 9774, 11205, 12450, 13575, 15023, 16290, 18675, 22410, 24435, 27150, 30046, 37350, 40725, 45069, 48870, 56025, 75115, 81450, 90138, 112050, 122175, 135207, 150230, 225345, 244350, 270414, 375575, 405621, 450690, 676035, 751150, 811242, 1126725, 1352070, 2028105, 2253450, 3380175, 4056210, 6760350, 10140525, 20281050]

約数ペア:

[(1, 20281050), (2, 10140525), (3, 6760350), (5, 4056210), (6, 3380175), (9, 2253450), (10, 2028105), (15, 1352070), (18, 1126725), (25, 811242), (27, 751150), (30, 676035), (45, 450690), (50, 405621), (54, 375575), (75, 270414), (83, 244350), (90, 225345), (135, 150230), (150, 135207), (166, 122175), (181, 112050), (225, 90138), (249, 81450), (270, 75115), (362, 56025), (415, 48870), (450, 45069), (498, 40725), (543, 37350), (675, 30046), (747, 27150), (830, 24435), (905, 22410), (1086, 18675), (1245, 16290), (1350, 15023), (1494, 13575), (1629, 12450), (1810, 11205), (2075, 9774), (2241, 9050), (2490, 8145), (2715, 7470), (3258, 6225), (3735, 5430), (4150, 4887), (4482, 4525)]