49728640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 128

約数和(自身を含む): 131947200

約数和(自身を除く): 82218560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 128, 130, 139, 160, 172, 208, 215, 260, 278, 320, 344, 416, 430, 520, 556, 559, 640, 688, 695, 832, 860, 1040, 1112, 1118, 1376, 1390, 1664, 1720, 1807, 2080, 2224, 2236, 2752, 2780, 2795, 3440, 3614, 4160, 4448, 4472, 5504, 5560, 5590, 5977, 6880, 7228, 8320, 8896, 8944, 9035, 11120, 11180, 11954, 13760, 14456, 17792, 17888, 18070, 22240, 22360, 23908, 27520, 28912, 29885, 35776, 36140, 44480, 44720, 47816, 57824, 59770, 71552, 72280, 77701, 88960, 89440, 95632, 115648, 119540, 144560, 155402, 178880, 191264, 231296, 239080, 289120, 310804, 357760, 382528, 388505, 478160, 578240, 621608, 765056, 777010, 956320, 1156480, 1243216, 1554020, 1912640, 2486432, 3108040, 3825280, 4972864, 6216080, 9945728, 12432160, 24864320, 49728640]

約数ペア:

[(1, 49728640), (2, 24864320), (4, 12432160), (5, 9945728), (8, 6216080), (10, 4972864), (13, 3825280), (16, 3108040), (20, 2486432), (26, 1912640), (32, 1554020), (40, 1243216), (43, 1156480), (52, 956320), (64, 777010), (65, 765056), (80, 621608), (86, 578240), (104, 478160), (128, 388505), (130, 382528), (139, 357760), (160, 310804), (172, 289120), (208, 239080), (215, 231296), (260, 191264), (278, 178880), (320, 155402), (344, 144560), (416, 119540), (430, 115648), (520, 95632), (556, 89440), (559, 88960), (640, 77701), (688, 72280), (695, 71552), (832, 59770), (860, 57824), (1040, 47816), (1112, 44720), (1118, 44480), (1376, 36140), (1390, 35776), (1664, 29885), (1720, 28912), (1807, 27520), (2080, 23908), (2224, 22360), (2236, 22240), (2752, 18070), (2780, 17888), (2795, 17792), (3440, 14456), (3614, 13760), (4160, 11954), (4448, 11180), (4472, 11120), (5504, 9035), (5560, 8944), (5590, 8896), (5977, 8320), (6880, 7228)]