1619620840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{318823}}^1$

素因数の和:318961

約数の個数: 32

約数和(自身を含む): 3672852480

約数和(自身を除く): 2053231640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 318823, 637646, 1275292, 1594115, 2550584, 3188230, 6376460, 12752920, 40490521, 80981042, 161962084, 202452605, 323924168, 404905210, 809810420, 1619620840]

約数ペア:

[(1, 1619620840), (2, 809810420), (4, 404905210), (5, 323924168), (8, 202452605), (10, 161962084), (20, 80981042), (40, 40490521), (127, 12752920), (254, 6376460), (508, 3188230), (635, 2550584), (1016, 1594115), (1270, 1275292), (2540, 637646), (5080, 318823)]