66720918

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 150709248

約数和(自身を除く): 83988330

約数列:

[1, 2, 3, 6, 11, 22, 33, 47, 66, 94, 137, 141, 157, 274, 282, 314, 411, 471, 517, 822, 942, 1034, 1507, 1551, 1727, 3014, 3102, 3454, 4521, 5181, 6439, 7379, 9042, 10362, 12878, 14758, 19317, 21509, 22137, 38634, 43018, 44274, 64527, 70829, 81169, 129054, 141658, 162338, 212487, 236599, 243507, 424974, 473198, 487014, 709797, 1010923, 1419594, 2021846, 3032769, 6065538, 11120153, 22240306, 33360459, 66720918]

約数ペア:

[(1, 66720918), (2, 33360459), (3, 22240306), (6, 11120153), (11, 6065538), (22, 3032769), (33, 2021846), (47, 1419594), (66, 1010923), (94, 709797), (137, 487014), (141, 473198), (157, 424974), (274, 243507), (282, 236599), (314, 212487), (411, 162338), (471, 141658), (517, 129054), (822, 81169), (942, 70829), (1034, 64527), (1507, 44274), (1551, 43018), (1727, 38634), (3014, 22137), (3102, 21509), (3454, 19317), (4521, 14758), (5181, 12878), (6439, 10362), (7379, 9042)]