18638510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 20552530

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 53, 55, 106, 110, 115, 139, 230, 253, 265, 278, 506, 530, 583, 695, 1166, 1219, 1265, 1390, 1529, 2438, 2530, 2915, 3058, 3197, 5830, 6095, 6394, 7367, 7645, 12190, 13409, 14734, 15290, 15985, 26818, 31970, 35167, 36835, 67045, 70334, 73670, 81037, 134090, 162074, 169441, 175835, 338882, 351670, 405185, 810370, 847205, 1694410, 1863851, 3727702, 9319255, 18638510]

約数ペア:

[(1, 18638510), (2, 9319255), (5, 3727702), (10, 1863851), (11, 1694410), (22, 847205), (23, 810370), (46, 405185), (53, 351670), (55, 338882), (106, 175835), (110, 169441), (115, 162074), (139, 134090), (230, 81037), (253, 73670), (265, 70334), (278, 67045), (506, 36835), (530, 35167), (583, 31970), (695, 26818), (1166, 15985), (1219, 15290), (1265, 14734), (1390, 13409), (1529, 12190), (2438, 7645), (2530, 7367), (2915, 6394), (3058, 6095), (3197, 5830)]