20155960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2411}}^1$

素因数の和:2452

約数の個数: 64

約数和(自身を含む): 52099200

約数和(自身を除く): 31943240

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 2411, 4180, 4822, 8360, 9644, 12055, 19288, 24110, 26521, 45809, 48220, 53042, 91618, 96440, 106084, 132605, 183236, 212168, 229045, 265210, 366472, 458090, 503899, 530420, 916180, 1007798, 1060840, 1832360, 2015596, 2519495, 4031192, 5038990, 10077980, 20155960]

約数ペア:

[(1, 20155960), (2, 10077980), (4, 5038990), (5, 4031192), (8, 2519495), (10, 2015596), (11, 1832360), (19, 1060840), (20, 1007798), (22, 916180), (38, 530420), (40, 503899), (44, 458090), (55, 366472), (76, 265210), (88, 229045), (95, 212168), (110, 183236), (152, 132605), (190, 106084), (209, 96440), (220, 91618), (380, 53042), (418, 48220), (440, 45809), (760, 26521), (836, 24110), (1045, 19288), (1672, 12055), (2090, 9644), (2411, 8360), (4180, 4822)]