144640840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{35107}}^1$

素因数の和:35221

約数の個数: 32

約数和(自身を含む): 328610880

約数和(自身を除く): 183970040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 35107, 70214, 140428, 175535, 280856, 351070, 702140, 1404280, 3616021, 7232042, 14464084, 18080105, 28928168, 36160210, 72320420, 144640840]

約数ペア:

[(1, 144640840), (2, 72320420), (4, 36160210), (5, 28928168), (8, 18080105), (10, 14464084), (20, 7232042), (40, 3616021), (103, 1404280), (206, 702140), (412, 351070), (515, 280856), (824, 175535), (1030, 140428), (2060, 70214), (4120, 35107)]