420512240

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{41389}}^1$

素因数の和:41529

約数の個数: 40

約数和(自身を含む): 985413120

約数和(自身を除く): 564900880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 41389, 82778, 165556, 206945, 331112, 413890, 662224, 827780, 1655560, 3311120, 5256403, 10512806, 21025612, 26282015, 42051224, 52564030, 84102448, 105128060, 210256120, 420512240]

約数ペア:

[(1, 420512240), (2, 210256120), (4, 105128060), (5, 84102448), (8, 52564030), (10, 42051224), (16, 26282015), (20, 21025612), (40, 10512806), (80, 5256403), (127, 3311120), (254, 1655560), (508, 827780), (635, 662224), (1016, 413890), (1270, 331112), (2032, 206945), (2540, 165556), (5080, 82778), (10160, 41389)]