1297940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 3182592

約数和(自身を除く): 1884652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 127, 140, 146, 254, 292, 365, 508, 511, 635, 730, 889, 1022, 1270, 1460, 1778, 2044, 2540, 2555, 3556, 4445, 5110, 8890, 9271, 10220, 17780, 18542, 37084, 46355, 64897, 92710, 129794, 185420, 259588, 324485, 648970, 1297940]

約数ペア:

[(1, 1297940), (2, 648970), (4, 324485), (5, 259588), (7, 185420), (10, 129794), (14, 92710), (20, 64897), (28, 46355), (35, 37084), (70, 18542), (73, 17780), (127, 10220), (140, 9271), (146, 8890), (254, 5110), (292, 4445), (365, 3556), (508, 2555), (511, 2540), (635, 2044), (730, 1778), (889, 1460), (1022, 1270)]