20986670210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1\times {\mathrm{11717}}^1$

素因数の和:12611

約数の個数: 64

約数和(自身を含む): 43433470080

約数和(自身を除く): 22446799870

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 857, 1045, 1714, 2090, 4285, 8570, 9427, 11717, 16283, 18854, 23434, 32566, 47135, 58585, 81415, 94270, 117170, 128887, 162830, 179113, 222623, 257774, 358226, 445246, 644435, 895565, 1113115, 1288870, 1791130, 2226230, 2448853, 4897706, 10041469, 12244265, 20082938, 24488530, 50207345, 100414690, 110456159, 190787911, 220912318, 381575822, 552280795, 953939555, 1104561590, 1907879110, 2098667021, 4197334042, 10493335105, 20986670210]

約数ペア:

[(1, 20986670210), (2, 10493335105), (5, 4197334042), (10, 2098667021), (11, 1907879110), (19, 1104561590), (22, 953939555), (38, 552280795), (55, 381575822), (95, 220912318), (110, 190787911), (190, 110456159), (209, 100414690), (418, 50207345), (857, 24488530), (1045, 20082938), (1714, 12244265), (2090, 10041469), (4285, 4897706), (8570, 2448853), (9427, 2226230), (11717, 1791130), (16283, 1288870), (18854, 1113115), (23434, 895565), (32566, 644435), (47135, 445246), (58585, 358226), (81415, 257774), (94270, 222623), (117170, 179113), (128887, 162830)]