64864480

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1123}}^1$

素因数の和:1176

約数の個数: 72

約数和(自身を含む): 161876232

約数和(自身を除く): 97011752

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 361, 380, 608, 722, 760, 1123, 1444, 1520, 1805, 2246, 2888, 3040, 3610, 4492, 5615, 5776, 7220, 8984, 11230, 11552, 14440, 17968, 21337, 22460, 28880, 35936, 42674, 44920, 57760, 85348, 89840, 106685, 170696, 179680, 213370, 341392, 405403, 426740, 682784, 810806, 853480, 1621612, 1706960, 2027015, 3243224, 3413920, 4054030, 6486448, 8108060, 12972896, 16216120, 32432240, 64864480]

約数ペア:

[(1, 64864480), (2, 32432240), (4, 16216120), (5, 12972896), (8, 8108060), (10, 6486448), (16, 4054030), (19, 3413920), (20, 3243224), (32, 2027015), (38, 1706960), (40, 1621612), (76, 853480), (80, 810806), (95, 682784), (152, 426740), (160, 405403), (190, 341392), (304, 213370), (361, 179680), (380, 170696), (608, 106685), (722, 89840), (760, 85348), (1123, 57760), (1444, 44920), (1520, 42674), (1805, 35936), (2246, 28880), (2888, 22460), (3040, 21337), (3610, 17968), (4492, 14440), (5615, 11552), (5776, 11230), (7220, 8984)]