1277694440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{28751}}^1$

素因数の和:28874

約数の個数: 64

約数和(自身を含む): 3167320320

約数和(自身を除く): 1889625880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 202, 220, 404, 440, 505, 808, 1010, 1111, 2020, 2222, 4040, 4444, 5555, 8888, 11110, 22220, 28751, 44440, 57502, 115004, 143755, 230008, 287510, 316261, 575020, 632522, 1150040, 1265044, 1581305, 2530088, 2903851, 3162610, 5807702, 6325220, 11615404, 12650440, 14519255, 23230808, 29038510, 31942361, 58077020, 63884722, 116154040, 127769444, 159711805, 255538888, 319423610, 638847220, 1277694440]

約数ペア:

[(1, 1277694440), (2, 638847220), (4, 319423610), (5, 255538888), (8, 159711805), (10, 127769444), (11, 116154040), (20, 63884722), (22, 58077020), (40, 31942361), (44, 29038510), (55, 23230808), (88, 14519255), (101, 12650440), (110, 11615404), (202, 6325220), (220, 5807702), (404, 3162610), (440, 2903851), (505, 2530088), (808, 1581305), (1010, 1265044), (1111, 1150040), (2020, 632522), (2222, 575020), (4040, 316261), (4444, 287510), (5555, 230008), (8888, 143755), (11110, 115004), (22220, 57502), (28751, 44440)]