40643720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1663}}^1$

素因数の和:1734

約数の個数: 64

約数和(自身を含む): 100638720

約数和(自身を除く): 59995000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1222, 1663, 1880, 2444, 3055, 3326, 4888, 6110, 6652, 8315, 12220, 13304, 16630, 21619, 24440, 33260, 43238, 66520, 78161, 86476, 108095, 156322, 172952, 216190, 312644, 390805, 432380, 625288, 781610, 864760, 1016093, 1563220, 2032186, 3126440, 4064372, 5080465, 8128744, 10160930, 20321860, 40643720]

約数ペア:

[(1, 40643720), (2, 20321860), (4, 10160930), (5, 8128744), (8, 5080465), (10, 4064372), (13, 3126440), (20, 2032186), (26, 1563220), (40, 1016093), (47, 864760), (52, 781610), (65, 625288), (94, 432380), (104, 390805), (130, 312644), (188, 216190), (235, 172952), (260, 156322), (376, 108095), (470, 86476), (520, 78161), (611, 66520), (940, 43238), (1222, 33260), (1663, 24440), (1880, 21619), (2444, 16630), (3055, 13304), (3326, 12220), (4888, 8315), (6110, 6652)]