13939180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 30481920

約数和(自身を除く): 16542740

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 191, 205, 356, 382, 410, 445, 764, 820, 890, 955, 1780, 1910, 3649, 3820, 7298, 7831, 14596, 15662, 16999, 18245, 31324, 33998, 36490, 39155, 67996, 72980, 78310, 84995, 156620, 169990, 339980, 696959, 1393918, 2787836, 3484795, 6969590, 13939180]

約数ペア:

[(1, 13939180), (2, 6969590), (4, 3484795), (5, 2787836), (10, 1393918), (20, 696959), (41, 339980), (82, 169990), (89, 156620), (164, 84995), (178, 78310), (191, 72980), (205, 67996), (356, 39155), (382, 36490), (410, 33998), (445, 31324), (764, 18245), (820, 16999), (890, 15662), (955, 14596), (1780, 7831), (1910, 7298), (3649, 3820)]