1279825740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{25303}}^1$

素因数の和:25599

約数の個数: 72

約数和(自身を含む): 3896107488

約数和(自身を除く): 2616281748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 562, 843, 1124, 1405, 1686, 2529, 2810, 3372, 4215, 5058, 5620, 8430, 10116, 12645, 16860, 25290, 25303, 50580, 50606, 75909, 101212, 126515, 151818, 227727, 253030, 303636, 379545, 455454, 506060, 759090, 910908, 1138635, 1518180, 2277270, 4554540, 7110143, 14220286, 21330429, 28440572, 35550715, 42660858, 63991287, 71101430, 85321716, 106652145, 127982574, 142202860, 213304290, 255965148, 319956435, 426608580, 639912870, 1279825740]

約数ペア:

[(1, 1279825740), (2, 639912870), (3, 426608580), (4, 319956435), (5, 255965148), (6, 213304290), (9, 142202860), (10, 127982574), (12, 106652145), (15, 85321716), (18, 71101430), (20, 63991287), (30, 42660858), (36, 35550715), (45, 28440572), (60, 21330429), (90, 14220286), (180, 7110143), (281, 4554540), (562, 2277270), (843, 1518180), (1124, 1138635), (1405, 910908), (1686, 759090), (2529, 506060), (2810, 455454), (3372, 379545), (4215, 303636), (5058, 253030), (5620, 227727), (8430, 151818), (10116, 126515), (12645, 101212), (16860, 75909), (25290, 50606), (25303, 50580)]