40904920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1051}}^1$

素因数の和:1208

約数の個数: 64

約数和(自身を含む): 106041600

約数和(自身を除く): 65136680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1051, 1112, 1390, 1946, 2102, 2780, 3892, 4204, 4865, 5255, 5560, 7357, 7784, 8408, 9730, 10510, 14714, 19460, 21020, 29428, 36785, 38920, 42040, 58856, 73570, 146089, 147140, 292178, 294280, 584356, 730445, 1022623, 1168712, 1460890, 2045246, 2921780, 4090492, 5113115, 5843560, 8180984, 10226230, 20452460, 40904920]

約数ペア:

[(1, 40904920), (2, 20452460), (4, 10226230), (5, 8180984), (7, 5843560), (8, 5113115), (10, 4090492), (14, 2921780), (20, 2045246), (28, 1460890), (35, 1168712), (40, 1022623), (56, 730445), (70, 584356), (139, 294280), (140, 292178), (278, 147140), (280, 146089), (556, 73570), (695, 58856), (973, 42040), (1051, 38920), (1112, 36785), (1390, 29428), (1946, 21020), (2102, 19460), (2780, 14714), (3892, 10510), (4204, 9730), (4865, 8408), (5255, 7784), (5560, 7357)]