68640915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 130540032

約数和(自身を除く): 61899117

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 705, 735, 987, 1645, 1987, 2303, 4935, 5961, 6909, 9935, 11515, 13909, 29805, 34545, 41727, 69545, 93389, 97363, 208635, 280167, 292089, 466945, 486815, 653723, 1400835, 1460445, 1961169, 3268615, 4576061, 9805845, 13728183, 22880305, 68640915]

約数ペア:

[(1, 68640915), (3, 22880305), (5, 13728183), (7, 9805845), (15, 4576061), (21, 3268615), (35, 1961169), (47, 1460445), (49, 1400835), (105, 653723), (141, 486815), (147, 466945), (235, 292089), (245, 280167), (329, 208635), (705, 97363), (735, 93389), (987, 69545), (1645, 41727), (1987, 34545), (2303, 29805), (4935, 13909), (5961, 11515), (6909, 9935)]