81474948

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1987}}^1$

素因数の和:2081

約数の個数: 72

約数和(自身を含む): 221431392

約数和(自身を除く): 139956444

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 67, 68, 102, 134, 153, 201, 204, 268, 306, 402, 603, 612, 804, 1139, 1206, 1987, 2278, 2412, 3417, 3974, 4556, 5961, 6834, 7948, 10251, 11922, 13668, 17883, 20502, 23844, 33779, 35766, 41004, 67558, 71532, 101337, 133129, 135116, 202674, 266258, 304011, 399387, 405348, 532516, 608022, 798774, 1198161, 1216044, 1597548, 2263193, 2396322, 4526386, 4792644, 6789579, 9052772, 13579158, 20368737, 27158316, 40737474, 81474948]

約数ペア:

[(1, 81474948), (2, 40737474), (3, 27158316), (4, 20368737), (6, 13579158), (9, 9052772), (12, 6789579), (17, 4792644), (18, 4526386), (34, 2396322), (36, 2263193), (51, 1597548), (67, 1216044), (68, 1198161), (102, 798774), (134, 608022), (153, 532516), (201, 405348), (204, 399387), (268, 304011), (306, 266258), (402, 202674), (603, 135116), (612, 133129), (804, 101337), (1139, 71532), (1206, 67558), (1987, 41004), (2278, 35766), (2412, 33779), (3417, 23844), (3974, 20502), (4556, 17883), (5961, 13668), (6834, 11922), (7948, 10251)]