49725520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 125773200

約数和(自身を除く): 76047680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 137, 208, 260, 274, 349, 520, 548, 685, 698, 1040, 1096, 1370, 1396, 1745, 1781, 2192, 2740, 2792, 3490, 3562, 4537, 5480, 5584, 6980, 7124, 8905, 9074, 10960, 13960, 14248, 17810, 18148, 22685, 27920, 28496, 35620, 36296, 45370, 47813, 71240, 72592, 90740, 95626, 142480, 181480, 191252, 239065, 362960, 382504, 478130, 621569, 765008, 956260, 1243138, 1912520, 2486276, 3107845, 3825040, 4972552, 6215690, 9945104, 12431380, 24862760, 49725520]

約数ペア:

[(1, 49725520), (2, 24862760), (4, 12431380), (5, 9945104), (8, 6215690), (10, 4972552), (13, 3825040), (16, 3107845), (20, 2486276), (26, 1912520), (40, 1243138), (52, 956260), (65, 765008), (80, 621569), (104, 478130), (130, 382504), (137, 362960), (208, 239065), (260, 191252), (274, 181480), (349, 142480), (520, 95626), (548, 90740), (685, 72592), (698, 71240), (1040, 47813), (1096, 45370), (1370, 36296), (1396, 35620), (1745, 28496), (1781, 27920), (2192, 22685), (2740, 18148), (2792, 17810), (3490, 14248), (3562, 13960), (4537, 10960), (5480, 9074), (5584, 8905), (6980, 7124)]