49983890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 100117080

約数和(自身を除く): 50133190

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 121, 202, 242, 409, 505, 605, 818, 1010, 1111, 1210, 2045, 2222, 4090, 4499, 5555, 8998, 11110, 12221, 22495, 24442, 41309, 44990, 49489, 61105, 82618, 98978, 122210, 206545, 247445, 413090, 454399, 494890, 908798, 2271995, 4543990, 4998389, 9996778, 24991945, 49983890]

約数ペア:

[(1, 49983890), (2, 24991945), (5, 9996778), (10, 4998389), (11, 4543990), (22, 2271995), (55, 908798), (101, 494890), (110, 454399), (121, 413090), (202, 247445), (242, 206545), (409, 122210), (505, 98978), (605, 82618), (818, 61105), (1010, 49489), (1111, 44990), (1210, 41309), (2045, 24442), (2222, 22495), (4090, 12221), (4499, 11110), (5555, 8998)]