85102020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6659}}^1$

素因数の和:6745

約数の個数: 72

約数和(自身を含む): 261817920

約数和(自身を除く): 176715900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 6659, 12780, 13318, 19977, 26636, 33295, 39954, 59931, 66590, 79908, 99885, 119862, 133180, 199770, 239724, 299655, 399540, 472789, 599310, 945578, 1198620, 1418367, 1891156, 2363945, 2836734, 4255101, 4727890, 5673468, 7091835, 8510202, 9455780, 14183670, 17020404, 21275505, 28367340, 42551010, 85102020]

約数ペア:

[(1, 85102020), (2, 42551010), (3, 28367340), (4, 21275505), (5, 17020404), (6, 14183670), (9, 9455780), (10, 8510202), (12, 7091835), (15, 5673468), (18, 4727890), (20, 4255101), (30, 2836734), (36, 2363945), (45, 1891156), (60, 1418367), (71, 1198620), (90, 945578), (142, 599310), (180, 472789), (213, 399540), (284, 299655), (355, 239724), (426, 199770), (639, 133180), (710, 119862), (852, 99885), (1065, 79908), (1278, 66590), (1420, 59931), (2130, 39954), (2556, 33295), (3195, 26636), (4260, 19977), (6390, 13318), (6659, 12780)]