129282020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 322430976

約数和(自身を除く): 193148956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 101, 140, 164, 202, 205, 223, 287, 404, 410, 446, 505, 574, 707, 820, 892, 1010, 1115, 1148, 1414, 1435, 1561, 2020, 2230, 2828, 2870, 3122, 3535, 4141, 4460, 5740, 6244, 7070, 7805, 8282, 9143, 14140, 15610, 16564, 18286, 20705, 22523, 28987, 31220, 36572, 41410, 45046, 45715, 57974, 64001, 82820, 90092, 91430, 112615, 115948, 128002, 144935, 157661, 182860, 225230, 256004, 289870, 315322, 320005, 450460, 579740, 630644, 640010, 788305, 923443, 1280020, 1576610, 1846886, 3153220, 3693772, 4617215, 6464101, 9234430, 12928202, 18468860, 25856404, 32320505, 64641010, 129282020]

約数ペア:

[(1, 129282020), (2, 64641010), (4, 32320505), (5, 25856404), (7, 18468860), (10, 12928202), (14, 9234430), (20, 6464101), (28, 4617215), (35, 3693772), (41, 3153220), (70, 1846886), (82, 1576610), (101, 1280020), (140, 923443), (164, 788305), (202, 640010), (205, 630644), (223, 579740), (287, 450460), (404, 320005), (410, 315322), (446, 289870), (505, 256004), (574, 225230), (707, 182860), (820, 157661), (892, 144935), (1010, 128002), (1115, 115948), (1148, 112615), (1414, 91430), (1435, 90092), (1561, 82820), (2020, 64001), (2230, 57974), (2828, 45715), (2870, 45046), (3122, 41410), (3535, 36572), (4141, 31220), (4460, 28987), (5740, 22523), (6244, 20705), (7070, 18286), (7805, 16564), (8282, 15610), (9143, 14140)]