20097921080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{110647}}^1$

素因数の和:110916

約数の個数: 64

約数和(自身を含む): 47799936000

約数和(自身を除く): 27702014920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 239, 380, 478, 760, 956, 1195, 1912, 2390, 4541, 4780, 9082, 9560, 18164, 22705, 36328, 45410, 90820, 110647, 181640, 221294, 442588, 553235, 885176, 1106470, 2102293, 2212940, 4204586, 4425880, 8409172, 10511465, 16818344, 21022930, 26444633, 42045860, 52889266, 84091720, 105778532, 132223165, 211557064, 264446330, 502448027, 528892660, 1004896054, 1057785320, 2009792108, 2512240135, 4019584216, 5024480270, 10048960540, 20097921080]

約数ペア:

[(1, 20097921080), (2, 10048960540), (4, 5024480270), (5, 4019584216), (8, 2512240135), (10, 2009792108), (19, 1057785320), (20, 1004896054), (38, 528892660), (40, 502448027), (76, 264446330), (95, 211557064), (152, 132223165), (190, 105778532), (239, 84091720), (380, 52889266), (478, 42045860), (760, 26444633), (956, 21022930), (1195, 16818344), (1912, 10511465), (2390, 8409172), (4541, 4425880), (4780, 4204586), (9082, 2212940), (9560, 2102293), (18164, 1106470), (22705, 885176), (36328, 553235), (45410, 442588), (90820, 221294), (110647, 181640)]