31281156

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 84913920

約数和(自身を除く): 53632764

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 79, 102, 153, 158, 204, 237, 306, 316, 474, 612, 647, 711, 948, 1294, 1343, 1422, 1941, 2588, 2686, 2844, 3882, 4029, 5372, 5823, 7764, 8058, 10999, 11646, 12087, 16116, 21998, 23292, 24174, 32997, 43996, 48348, 51113, 65994, 98991, 102226, 131988, 153339, 197982, 204452, 306678, 395964, 460017, 613356, 868921, 920034, 1737842, 1840068, 2606763, 3475684, 5213526, 7820289, 10427052, 15640578, 31281156]

約数ペア:

[(1, 31281156), (2, 15640578), (3, 10427052), (4, 7820289), (6, 5213526), (9, 3475684), (12, 2606763), (17, 1840068), (18, 1737842), (34, 920034), (36, 868921), (51, 613356), (68, 460017), (79, 395964), (102, 306678), (153, 204452), (158, 197982), (204, 153339), (237, 131988), (306, 102226), (316, 98991), (474, 65994), (612, 51113), (647, 48348), (711, 43996), (948, 32997), (1294, 24174), (1343, 23292), (1422, 21998), (1941, 16116), (2588, 12087), (2686, 11646), (2844, 10999), (3882, 8058), (4029, 7764), (5372, 5823)]