18955105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 26449920

約数和(自身を除く): 7494815

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 299, 403, 409, 713, 1495, 2015, 2045, 3565, 5317, 9269, 9407, 12679, 26585, 46345, 47035, 63395, 122291, 164827, 291617, 611455, 824135, 1458085, 3791021, 18955105]

約数ペア:

[(1, 18955105), (5, 3791021), (13, 1458085), (23, 824135), (31, 611455), (65, 291617), (115, 164827), (155, 122291), (299, 63395), (403, 47035), (409, 46345), (713, 26585), (1495, 12679), (2015, 9407), (2045, 9269), (3565, 5317)]