20716472

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{463}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 48107520

約数和(自身を除く): 27391048

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 47, 56, 68, 94, 119, 136, 188, 238, 329, 376, 463, 476, 658, 799, 926, 952, 1316, 1598, 1852, 2632, 3196, 3241, 3704, 5593, 6392, 6482, 7871, 11186, 12964, 15742, 21761, 22372, 25928, 31484, 43522, 44744, 55097, 62968, 87044, 110194, 152327, 174088, 220388, 304654, 369937, 440776, 609308, 739874, 1218616, 1479748, 2589559, 2959496, 5179118, 10358236, 20716472]

約数ペア:

[(1, 20716472), (2, 10358236), (4, 5179118), (7, 2959496), (8, 2589559), (14, 1479748), (17, 1218616), (28, 739874), (34, 609308), (47, 440776), (56, 369937), (68, 304654), (94, 220388), (119, 174088), (136, 152327), (188, 110194), (238, 87044), (329, 62968), (376, 55097), (463, 44744), (476, 43522), (658, 31484), (799, 25928), (926, 22372), (952, 21761), (1316, 15742), (1598, 12964), (1852, 11186), (2632, 7871), (3196, 6482), (3241, 6392), (3704, 5593)]