81967440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1429}}^1$

素因数の和:1684

約数の個数: 80

約数和(自身を含む): 255340800

約数和(自身を除く): 173373360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 478, 717, 956, 1195, 1429, 1434, 1912, 2390, 2858, 2868, 3585, 3824, 4287, 4780, 5716, 5736, 7145, 7170, 8574, 9560, 11432, 11472, 14290, 14340, 17148, 19120, 21435, 22864, 28580, 28680, 34296, 42870, 57160, 57360, 68592, 85740, 114320, 171480, 341531, 342960, 683062, 1024593, 1366124, 1707655, 2049186, 2732248, 3415310, 4098372, 5122965, 5464496, 6830620, 8196744, 10245930, 13661240, 16393488, 20491860, 27322480, 40983720, 81967440]

約数ペア:

[(1, 81967440), (2, 40983720), (3, 27322480), (4, 20491860), (5, 16393488), (6, 13661240), (8, 10245930), (10, 8196744), (12, 6830620), (15, 5464496), (16, 5122965), (20, 4098372), (24, 3415310), (30, 2732248), (40, 2049186), (48, 1707655), (60, 1366124), (80, 1024593), (120, 683062), (239, 342960), (240, 341531), (478, 171480), (717, 114320), (956, 85740), (1195, 68592), (1429, 57360), (1434, 57160), (1912, 42870), (2390, 34296), (2858, 28680), (2868, 28580), (3585, 22864), (3824, 21435), (4287, 19120), (4780, 17148), (5716, 14340), (5736, 14290), (7145, 11472), (7170, 11432), (8574, 9560)]