51191000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:202

約数の個数: 128

約数和(自身を含む): 140175360

約数和(自身を除く): 88984360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 71, 100, 103, 125, 140, 142, 175, 200, 206, 250, 280, 284, 350, 355, 412, 497, 500, 515, 568, 700, 710, 721, 824, 875, 994, 1000, 1030, 1400, 1420, 1442, 1750, 1775, 1988, 2060, 2485, 2575, 2840, 2884, 3500, 3550, 3605, 3976, 4120, 4970, 5150, 5768, 7000, 7100, 7210, 7313, 8875, 9940, 10300, 12425, 12875, 14200, 14420, 14626, 17750, 18025, 19880, 20600, 24850, 25750, 28840, 29252, 35500, 36050, 36565, 49700, 51191, 51500, 58504, 62125, 71000, 72100, 73130, 90125, 99400, 102382, 103000, 124250, 144200, 146260, 180250, 182825, 204764, 248500, 255955, 292520, 360500, 365650, 409528, 497000, 511910, 721000, 731300, 914125, 1023820, 1279775, 1462600, 1828250, 2047640, 2559550, 3656500, 5119100, 6398875, 7313000, 10238200, 12797750, 25595500, 51191000]

約数ペア:

[(1, 51191000), (2, 25595500), (4, 12797750), (5, 10238200), (7, 7313000), (8, 6398875), (10, 5119100), (14, 3656500), (20, 2559550), (25, 2047640), (28, 1828250), (35, 1462600), (40, 1279775), (50, 1023820), (56, 914125), (70, 731300), (71, 721000), (100, 511910), (103, 497000), (125, 409528), (140, 365650), (142, 360500), (175, 292520), (200, 255955), (206, 248500), (250, 204764), (280, 182825), (284, 180250), (350, 146260), (355, 144200), (412, 124250), (497, 103000), (500, 102382), (515, 99400), (568, 90125), (700, 73130), (710, 72100), (721, 71000), (824, 62125), (875, 58504), (994, 51500), (1000, 51191), (1030, 49700), (1400, 36565), (1420, 36050), (1442, 35500), (1750, 29252), (1775, 28840), (1988, 25750), (2060, 24850), (2485, 20600), (2575, 19880), (2840, 18025), (2884, 17750), (3500, 14626), (3550, 14420), (3605, 14200), (3976, 12875), (4120, 12425), (4970, 10300), (5150, 9940), (5768, 8875), (7000, 7313), (7100, 7210)]