12642520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{487}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 31622400

約数和(自身を除く): 18979880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 487, 590, 649, 974, 1180, 1298, 1948, 2360, 2435, 2596, 3245, 3896, 4870, 5192, 5357, 6490, 9740, 10714, 12980, 19480, 21428, 25960, 26785, 28733, 42856, 53570, 57466, 107140, 114932, 143665, 214280, 229864, 287330, 316063, 574660, 632126, 1149320, 1264252, 1580315, 2528504, 3160630, 6321260, 12642520]

約数ペア:

[(1, 12642520), (2, 6321260), (4, 3160630), (5, 2528504), (8, 1580315), (10, 1264252), (11, 1149320), (20, 632126), (22, 574660), (40, 316063), (44, 287330), (55, 229864), (59, 214280), (88, 143665), (110, 114932), (118, 107140), (220, 57466), (236, 53570), (295, 42856), (440, 28733), (472, 26785), (487, 25960), (590, 21428), (649, 19480), (974, 12980), (1180, 10714), (1298, 9740), (1948, 6490), (2360, 5357), (2435, 5192), (2596, 4870), (3245, 3896)]