20438517996

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{338543}}^1$

素因数の和:338612

約数の個数: 96

約数和(自身を含む): 58392069120

約数和(自身を除く): 37953551124

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 43, 52, 54, 78, 86, 108, 117, 129, 156, 172, 234, 258, 351, 387, 468, 516, 559, 702, 774, 1118, 1161, 1404, 1548, 1677, 2236, 2322, 3354, 4644, 5031, 6708, 10062, 15093, 20124, 30186, 60372, 338543, 677086, 1015629, 1354172, 2031258, 3046887, 4062516, 4401059, 6093774, 8802118, 9140661, 12187548, 13203177, 14557349, 17604236, 18281322, 26406354, 29114698, 36562644, 39609531, 43672047, 52812708, 58229396, 79219062, 87344094, 118828593, 131016141, 158438124, 174688188, 189245537, 237657186, 262032282, 378491074, 393048423, 475314372, 524064564, 567736611, 756982148, 786096846, 1135473222, 1572193692, 1703209833, 2270946444, 3406419666, 5109629499, 6812839332, 10219258998, 20438517996]

約数ペア:

[(1, 20438517996), (2, 10219258998), (3, 6812839332), (4, 5109629499), (6, 3406419666), (9, 2270946444), (12, 1703209833), (13, 1572193692), (18, 1135473222), (26, 786096846), (27, 756982148), (36, 567736611), (39, 524064564), (43, 475314372), (52, 393048423), (54, 378491074), (78, 262032282), (86, 237657186), (108, 189245537), (117, 174688188), (129, 158438124), (156, 131016141), (172, 118828593), (234, 87344094), (258, 79219062), (351, 58229396), (387, 52812708), (468, 43672047), (516, 39609531), (559, 36562644), (702, 29114698), (774, 26406354), (1118, 18281322), (1161, 17604236), (1404, 14557349), (1548, 13203177), (1677, 12187548), (2236, 9140661), (2322, 8802118), (3354, 6093774), (4644, 4401059), (5031, 4062516), (6708, 3046887), (10062, 2031258), (15093, 1354172), (20124, 1015629), (30186, 677086), (60372, 338543)]