21457440

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4967}}^1$

素因数の和:4991

約数の個数: 96

約数和(自身を含む): 75116160

約数和(自身を除く): 53658720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4967, 9934, 14901, 19868, 24835, 29802, 39736, 44703, 49670, 59604, 74505, 79472, 89406, 99340, 119208, 134109, 149010, 158944, 178812, 198680, 223515, 238416, 268218, 298020, 357624, 397360, 447030, 476832, 536436, 596040, 670545, 715248, 794720, 894060, 1072872, 1192080, 1341090, 1430496, 1788120, 2145744, 2384160, 2682180, 3576240, 4291488, 5364360, 7152480, 10728720, 21457440]

約数ペア:

[(1, 21457440), (2, 10728720), (3, 7152480), (4, 5364360), (5, 4291488), (6, 3576240), (8, 2682180), (9, 2384160), (10, 2145744), (12, 1788120), (15, 1430496), (16, 1341090), (18, 1192080), (20, 1072872), (24, 894060), (27, 794720), (30, 715248), (32, 670545), (36, 596040), (40, 536436), (45, 476832), (48, 447030), (54, 397360), (60, 357624), (72, 298020), (80, 268218), (90, 238416), (96, 223515), (108, 198680), (120, 178812), (135, 158944), (144, 149010), (160, 134109), (180, 119208), (216, 99340), (240, 89406), (270, 79472), (288, 74505), (360, 59604), (432, 49670), (480, 44703), (540, 39736), (720, 29802), (864, 24835), (1080, 19868), (1440, 14901), (2160, 9934), (4320, 4967)]