71399860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1777}}^1$

素因数の和:1841

約数の個数: 72

約数和(自身を含む): 178774344

約数和(自身を除く): 107374484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 1777, 2009, 2870, 3554, 4018, 5740, 7108, 8036, 8885, 10045, 12439, 17770, 20090, 24878, 35540, 40180, 49756, 62195, 72857, 87073, 124390, 145714, 174146, 248780, 291428, 348292, 364285, 435365, 509999, 728570, 870730, 1019998, 1457140, 1741460, 2039996, 2549995, 3569993, 5099990, 7139986, 10199980, 14279972, 17849965, 35699930, 71399860]

約数ペア:

[(1, 71399860), (2, 35699930), (4, 17849965), (5, 14279972), (7, 10199980), (10, 7139986), (14, 5099990), (20, 3569993), (28, 2549995), (35, 2039996), (41, 1741460), (49, 1457140), (70, 1019998), (82, 870730), (98, 728570), (140, 509999), (164, 435365), (196, 364285), (205, 348292), (245, 291428), (287, 248780), (410, 174146), (490, 145714), (574, 124390), (820, 87073), (980, 72857), (1148, 62195), (1435, 49756), (1777, 40180), (2009, 35540), (2870, 24878), (3554, 20090), (4018, 17770), (5740, 12439), (7108, 10045), (8036, 8885)]