129631480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2917}}^1$

素因数の和:3040

約数の個数: 64

約数和(自身を含む): 321446880

約数和(自身を除く): 191815400

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, 2917, 4040, 4444, 5555, 5834, 8888, 11110, 11668, 14585, 22220, 23336, 29170, 32087, 44440, 58340, 64174, 116680, 128348, 160435, 256696, 294617, 320870, 589234, 641740, 1178468, 1283480, 1473085, 2356936, 2946170, 3240787, 5892340, 6481574, 11784680, 12963148, 16203935, 25926296, 32407870, 64815740, 129631480]

約数ペア:

[(1, 129631480), (2, 64815740), (4, 32407870), (5, 25926296), (8, 16203935), (10, 12963148), (11, 11784680), (20, 6481574), (22, 5892340), (40, 3240787), (44, 2946170), (55, 2356936), (88, 1473085), (101, 1283480), (110, 1178468), (202, 641740), (220, 589234), (404, 320870), (440, 294617), (505, 256696), (808, 160435), (1010, 128348), (1111, 116680), (2020, 64174), (2222, 58340), (2917, 44440), (4040, 32087), (4444, 29170), (5555, 23336), (5834, 22220), (8888, 14585), (11110, 11668)]