668889756

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{33721}}^1$

素因数の和:33779

約数の個数: 72

約数和(自身を含む): 1841221200

約数和(自身を除く): 1172331444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1044, 1102, 1653, 2204, 3306, 4959, 6612, 9918, 19836, 33721, 67442, 101163, 134884, 202326, 303489, 404652, 606978, 640699, 977909, 1213956, 1281398, 1922097, 1955818, 2562796, 2933727, 3844194, 3911636, 5766291, 5867454, 7688388, 8801181, 11532582, 11734908, 17602362, 18580271, 23065164, 35204724, 37160542, 55740813, 74321084, 111481626, 167222439, 222963252, 334444878, 668889756]

約数ペア:

[(1, 668889756), (2, 334444878), (3, 222963252), (4, 167222439), (6, 111481626), (9, 74321084), (12, 55740813), (18, 37160542), (19, 35204724), (29, 23065164), (36, 18580271), (38, 17602362), (57, 11734908), (58, 11532582), (76, 8801181), (87, 7688388), (114, 5867454), (116, 5766291), (171, 3911636), (174, 3844194), (228, 2933727), (261, 2562796), (342, 1955818), (348, 1922097), (522, 1281398), (551, 1213956), (684, 977909), (1044, 640699), (1102, 606978), (1653, 404652), (2204, 303489), (3306, 202326), (4959, 134884), (6612, 101163), (9918, 67442), (19836, 33721)]