66816180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1321}}^1$

素因数の和:1617

約数の個数: 72

約数和(自身を含む): 203550984

約数和(自身を除く): 136734804

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, 1321, 1405, 1686, 2529, 2642, 2810, 3372, 3963, 4215, 5058, 5284, 5620, 6605, 7926, 8430, 10116, 11889, 12645, 13210, 15852, 16860, 19815, 23778, 25290, 26420, 39630, 47556, 50580, 59445, 79260, 118890, 237780, 371201, 742402, 1113603, 1484804, 1856005, 2227206, 3340809, 3712010, 4454412, 5568015, 6681618, 7424020, 11136030, 13363236, 16704045, 22272060, 33408090, 66816180]

約数ペア:

[(1, 66816180), (2, 33408090), (3, 22272060), (4, 16704045), (5, 13363236), (6, 11136030), (9, 7424020), (10, 6681618), (12, 5568015), (15, 4454412), (18, 3712010), (20, 3340809), (30, 2227206), (36, 1856005), (45, 1484804), (60, 1113603), (90, 742402), (180, 371201), (281, 237780), (562, 118890), (843, 79260), (1124, 59445), (1321, 50580), (1405, 47556), (1686, 39630), (2529, 26420), (2642, 25290), (2810, 23778), (3372, 19815), (3963, 16860), (4215, 15852), (5058, 13210), (5284, 12645), (5620, 11889), (6605, 10116), (7926, 8430)]