51260720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:642

約数の個数: 80

約数和(自身を含む): 137134080

約数和(自身を除く): 85873360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 239, 280, 383, 478, 560, 766, 956, 1195, 1532, 1673, 1912, 1915, 2390, 2681, 3064, 3346, 3824, 3830, 4780, 5362, 6128, 6692, 7660, 8365, 9560, 10724, 13384, 13405, 15320, 16730, 19120, 21448, 26768, 26810, 30640, 33460, 42896, 53620, 66920, 91537, 107240, 133840, 183074, 214480, 366148, 457685, 640759, 732296, 915370, 1281518, 1464592, 1830740, 2563036, 3203795, 3661480, 5126072, 6407590, 7322960, 10252144, 12815180, 25630360, 51260720]

約数ペア:

[(1, 51260720), (2, 25630360), (4, 12815180), (5, 10252144), (7, 7322960), (8, 6407590), (10, 5126072), (14, 3661480), (16, 3203795), (20, 2563036), (28, 1830740), (35, 1464592), (40, 1281518), (56, 915370), (70, 732296), (80, 640759), (112, 457685), (140, 366148), (239, 214480), (280, 183074), (383, 133840), (478, 107240), (560, 91537), (766, 66920), (956, 53620), (1195, 42896), (1532, 33460), (1673, 30640), (1912, 26810), (1915, 26768), (2390, 21448), (2681, 19120), (3064, 16730), (3346, 15320), (3824, 13405), (3830, 13384), (4780, 10724), (5362, 9560), (6128, 8365), (6692, 7660)]