1078199920

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{39293}}^1$

素因数の和:39327

約数の個数: 80

約数和(自身を含む): 2923473600

約数和(自身を除く): 1845273680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 13720, 27440, 39293, 78586, 157172, 196465, 275051, 314344, 392930, 550102, 628688, 785860, 1100204, 1375255, 1571720, 1925357, 2200408, 2750510, 3143440, 3850714, 4400816, 5501020, 7701428, 9626785, 11002040, 13477499, 15402856, 19253570, 22004080, 26954998, 30805712, 38507140, 53909996, 67387495, 77014280, 107819992, 134774990, 154028560, 215639984, 269549980, 539099960, 1078199920]

約数ペア:

[(1, 1078199920), (2, 539099960), (4, 269549980), (5, 215639984), (7, 154028560), (8, 134774990), (10, 107819992), (14, 77014280), (16, 67387495), (20, 53909996), (28, 38507140), (35, 30805712), (40, 26954998), (49, 22004080), (56, 19253570), (70, 15402856), (80, 13477499), (98, 11002040), (112, 9626785), (140, 7701428), (196, 5501020), (245, 4400816), (280, 3850714), (343, 3143440), (392, 2750510), (490, 2200408), (560, 1925357), (686, 1571720), (784, 1375255), (980, 1100204), (1372, 785860), (1715, 628688), (1960, 550102), (2744, 392930), (3430, 314344), (3920, 275051), (5488, 196465), (6860, 157172), (13720, 78586), (27440, 39293)]