81518640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48523}}^1$

素因数の和:48546

約数の個数: 80

約数和(自身を含む): 288814848

約数和(自身を除く): 207296208

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48523, 97046, 145569, 194092, 242615, 291138, 339661, 388184, 485230, 582276, 679322, 727845, 776368, 970460, 1018983, 1164552, 1358644, 1455690, 1698305, 1940920, 2037966, 2329104, 2717288, 2911380, 3396610, 3881840, 4075932, 5094915, 5434576, 5822760, 6793220, 8151864, 10189830, 11645520, 13586440, 16303728, 20379660, 27172880, 40759320, 81518640]

約数ペア:

[(1, 81518640), (2, 40759320), (3, 27172880), (4, 20379660), (5, 16303728), (6, 13586440), (7, 11645520), (8, 10189830), (10, 8151864), (12, 6793220), (14, 5822760), (15, 5434576), (16, 5094915), (20, 4075932), (21, 3881840), (24, 3396610), (28, 2911380), (30, 2717288), (35, 2329104), (40, 2037966), (42, 1940920), (48, 1698305), (56, 1455690), (60, 1358644), (70, 1164552), (80, 1018983), (84, 970460), (105, 776368), (112, 727845), (120, 679322), (140, 582276), (168, 485230), (210, 388184), (240, 339661), (280, 291138), (336, 242615), (420, 194092), (560, 145569), (840, 97046), (1680, 48523)]