660910020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647951}}^1$

素因数の和:647980

約数の個数: 48

約数和(自身を含む): 1959406848

約数和(自身を除く): 1298496828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 647951, 1295902, 1943853, 2591804, 3239755, 3887706, 6479510, 7775412, 9719265, 11015167, 12959020, 19438530, 22030334, 33045501, 38877060, 44060668, 55075835, 66091002, 110151670, 132182004, 165227505, 220303340, 330455010, 660910020]

約数ペア:

[(1, 660910020), (2, 330455010), (3, 220303340), (4, 165227505), (5, 132182004), (6, 110151670), (10, 66091002), (12, 55075835), (15, 44060668), (17, 38877060), (20, 33045501), (30, 22030334), (34, 19438530), (51, 12959020), (60, 11015167), (68, 9719265), (85, 7775412), (102, 6479510), (170, 3887706), (204, 3239755), (255, 2591804), (340, 1943853), (510, 1295902), (1020, 647951)]