285640960

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20287}}^1$

素因数の和:20319

約数の個数: 72

約数和(自身を含む): 746436096

約数和(自身を除く): 460795136

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 20287, 40574, 81148, 101435, 162296, 202870, 223157, 324592, 405740, 446314, 649184, 811480, 892628, 1115785, 1298368, 1622960, 1785256, 2231570, 2596736, 3245920, 3570512, 4463140, 5193472, 6491840, 7141024, 8926280, 12983680, 14282048, 17852560, 25967360, 28564096, 35705120, 57128192, 71410240, 142820480, 285640960]

約数ペア:

[(1, 285640960), (2, 142820480), (4, 71410240), (5, 57128192), (8, 35705120), (10, 28564096), (11, 25967360), (16, 17852560), (20, 14282048), (22, 12983680), (32, 8926280), (40, 7141024), (44, 6491840), (55, 5193472), (64, 4463140), (80, 3570512), (88, 3245920), (110, 2596736), (128, 2231570), (160, 1785256), (176, 1622960), (220, 1298368), (256, 1115785), (320, 892628), (352, 811480), (440, 649184), (640, 446314), (704, 405740), (880, 324592), (1280, 223157), (1408, 202870), (1760, 162296), (2816, 101435), (3520, 81148), (7040, 40574), (14080, 20287)]