64790680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 150796800

約数和(自身を除く): 86006120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 139, 172, 215, 271, 278, 344, 430, 542, 556, 695, 860, 1084, 1112, 1355, 1390, 1720, 2168, 2710, 2780, 5420, 5560, 5977, 10840, 11653, 11954, 23306, 23908, 29885, 37669, 46612, 47816, 58265, 59770, 75338, 93224, 116530, 119540, 150676, 188345, 233060, 239080, 301352, 376690, 466120, 753380, 1506760, 1619767, 3239534, 6479068, 8098835, 12958136, 16197670, 32395340, 64790680]

約数ペア:

[(1, 64790680), (2, 32395340), (4, 16197670), (5, 12958136), (8, 8098835), (10, 6479068), (20, 3239534), (40, 1619767), (43, 1506760), (86, 753380), (139, 466120), (172, 376690), (215, 301352), (271, 239080), (278, 233060), (344, 188345), (430, 150676), (542, 119540), (556, 116530), (695, 93224), (860, 75338), (1084, 59770), (1112, 58265), (1355, 47816), (1390, 46612), (1720, 37669), (2168, 29885), (2710, 23908), (2780, 23306), (5420, 11954), (5560, 11653), (5977, 10840)]