281239280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8233}}^1$

素因数の和:8314

約数の個数: 80

約数和(自身を含む): 759635904

約数和(自身を除く): 478396624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2135, 2440, 3416, 4270, 4880, 6832, 8233, 8540, 16466, 17080, 32932, 34160, 41165, 57631, 65864, 82330, 115262, 131728, 164660, 230524, 288155, 329320, 461048, 502213, 576310, 658640, 922096, 1004426, 1152620, 2008852, 2305240, 2511065, 3515491, 4017704, 4610480, 5022130, 7030982, 8035408, 10044260, 14061964, 17577455, 20088520, 28123928, 35154910, 40177040, 56247856, 70309820, 140619640, 281239280]

約数ペア:

[(1, 281239280), (2, 140619640), (4, 70309820), (5, 56247856), (7, 40177040), (8, 35154910), (10, 28123928), (14, 20088520), (16, 17577455), (20, 14061964), (28, 10044260), (35, 8035408), (40, 7030982), (56, 5022130), (61, 4610480), (70, 4017704), (80, 3515491), (112, 2511065), (122, 2305240), (140, 2008852), (244, 1152620), (280, 1004426), (305, 922096), (427, 658640), (488, 576310), (560, 502213), (610, 461048), (854, 329320), (976, 288155), (1220, 230524), (1708, 164660), (2135, 131728), (2440, 115262), (3416, 82330), (4270, 65864), (4880, 57631), (6832, 41165), (8233, 34160), (8540, 32932), (16466, 17080)]