321031880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{617369}}^1$

素因数の和:617393

約数の個数: 32

約数和(自身を含む): 777886200

約数和(自身を除く): 456854320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 617369, 1234738, 2469476, 3086845, 4938952, 6173690, 8025797, 12347380, 16051594, 24694760, 32103188, 40128985, 64206376, 80257970, 160515940, 321031880]

約数ペア:

[(1, 321031880), (2, 160515940), (4, 80257970), (5, 64206376), (8, 40128985), (10, 32103188), (13, 24694760), (20, 16051594), (26, 12347380), (40, 8025797), (52, 6173690), (65, 4938952), (104, 3086845), (130, 2469476), (260, 1234738), (520, 617369)]