38979920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1481}}^1$

素因数の和:1548

約数の個数: 80

約数和(自身を含む): 105850368

約数和(自身を除く): 66870448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1316, 1481, 1645, 1880, 2632, 2962, 3290, 3760, 5264, 5924, 6580, 7405, 10367, 11848, 13160, 14810, 20734, 23696, 26320, 29620, 41468, 51835, 59240, 69607, 82936, 103670, 118480, 139214, 165872, 207340, 278428, 348035, 414680, 487249, 556856, 696070, 829360, 974498, 1113712, 1392140, 1948996, 2436245, 2784280, 3897992, 4872490, 5568560, 7795984, 9744980, 19489960, 38979920]

約数ペア:

[(1, 38979920), (2, 19489960), (4, 9744980), (5, 7795984), (7, 5568560), (8, 4872490), (10, 3897992), (14, 2784280), (16, 2436245), (20, 1948996), (28, 1392140), (35, 1113712), (40, 974498), (47, 829360), (56, 696070), (70, 556856), (80, 487249), (94, 414680), (112, 348035), (140, 278428), (188, 207340), (235, 165872), (280, 139214), (329, 118480), (376, 103670), (470, 82936), (560, 69607), (658, 59240), (752, 51835), (940, 41468), (1316, 29620), (1481, 26320), (1645, 23696), (1880, 20734), (2632, 14810), (2962, 13160), (3290, 11848), (3760, 10367), (5264, 7405), (5924, 6580)]