640798680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{314117}}^1$

素因数の和:314148

約数の個数: 64

約数和(自身を含む): 2035484640

約数和(自身を除く): 1394685960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 314117, 628234, 942351, 1256468, 1570585, 1884702, 2512936, 3141170, 3769404, 4711755, 5339989, 6282340, 7538808, 9423510, 10679978, 12564680, 16019967, 18847020, 21359956, 26699945, 32039934, 37694040, 42719912, 53399890, 64079868, 80099835, 106799780, 128159736, 160199670, 213599560, 320399340, 640798680]

約数ペア:

[(1, 640798680), (2, 320399340), (3, 213599560), (4, 160199670), (5, 128159736), (6, 106799780), (8, 80099835), (10, 64079868), (12, 53399890), (15, 42719912), (17, 37694040), (20, 32039934), (24, 26699945), (30, 21359956), (34, 18847020), (40, 16019967), (51, 12564680), (60, 10679978), (68, 9423510), (85, 7538808), (102, 6282340), (120, 5339989), (136, 4711755), (170, 3769404), (204, 3141170), (255, 2512936), (340, 1884702), (408, 1570585), (510, 1256468), (680, 942351), (1020, 628234), (2040, 314117)]