78879080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6871}}^1$

素因数の和:6930

約数の個数: 64

約数和(自身を含む): 207809280

約数和(自身を除く): 128930200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2870, 5740, 6871, 11480, 13742, 27484, 34355, 48097, 54968, 68710, 96194, 137420, 192388, 240485, 274840, 281711, 384776, 480970, 563422, 961940, 1126844, 1408555, 1923880, 1971977, 2253688, 2817110, 3943954, 5634220, 7887908, 9859885, 11268440, 15775816, 19719770, 39439540, 78879080]

約数ペア:

[(1, 78879080), (2, 39439540), (4, 19719770), (5, 15775816), (7, 11268440), (8, 9859885), (10, 7887908), (14, 5634220), (20, 3943954), (28, 2817110), (35, 2253688), (40, 1971977), (41, 1923880), (56, 1408555), (70, 1126844), (82, 961940), (140, 563422), (164, 480970), (205, 384776), (280, 281711), (287, 274840), (328, 240485), (410, 192388), (574, 137420), (820, 96194), (1148, 68710), (1435, 54968), (1640, 48097), (2296, 34355), (2870, 27484), (5740, 13742), (6871, 11480)]