20033936

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:304

約数の個数: 60

約数和(自身を含む): 43568640

約数和(自身を除く): 23534704

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 169, 208, 239, 248, 338, 403, 478, 496, 676, 806, 956, 1352, 1612, 1912, 2704, 3107, 3224, 3824, 5239, 6214, 6448, 7409, 10478, 12428, 14818, 20956, 24856, 29636, 40391, 41912, 49712, 59272, 80782, 83824, 96317, 118544, 161564, 192634, 323128, 385268, 646256, 770536, 1252121, 1541072, 2504242, 5008484, 10016968, 20033936]

約数ペア:

[(1, 20033936), (2, 10016968), (4, 5008484), (8, 2504242), (13, 1541072), (16, 1252121), (26, 770536), (31, 646256), (52, 385268), (62, 323128), (104, 192634), (124, 161564), (169, 118544), (208, 96317), (239, 83824), (248, 80782), (338, 59272), (403, 49712), (478, 41912), (496, 40391), (676, 29636), (806, 24856), (956, 20956), (1352, 14818), (1612, 12428), (1912, 10478), (2704, 7409), (3107, 6448), (3224, 6214), (3824, 5239)]