52940440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2663}}^1$

素因数の和:2752

約数の個数: 64

約数和(自身を含む): 138101760

約数和(自身を除く): 85161320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2663, 2840, 3976, 4970, 5326, 9940, 10652, 13315, 18641, 19880, 21304, 26630, 37282, 53260, 74564, 93205, 106520, 149128, 186410, 189073, 372820, 378146, 745640, 756292, 945365, 1323511, 1512584, 1890730, 2647022, 3781460, 5294044, 6617555, 7562920, 10588088, 13235110, 26470220, 52940440]

約数ペア:

[(1, 52940440), (2, 26470220), (4, 13235110), (5, 10588088), (7, 7562920), (8, 6617555), (10, 5294044), (14, 3781460), (20, 2647022), (28, 1890730), (35, 1512584), (40, 1323511), (56, 945365), (70, 756292), (71, 745640), (140, 378146), (142, 372820), (280, 189073), (284, 186410), (355, 149128), (497, 106520), (568, 93205), (710, 74564), (994, 53260), (1420, 37282), (1988, 26630), (2485, 21304), (2663, 19880), (2840, 18641), (3976, 13315), (4970, 10652), (5326, 9940)]