520039760

素因数分解:

$2^4\times 5^1\times {\mathrm{6500497}}^1$

素因数の和:6500510

約数の個数: 20

約数和(自身を含む): 1209092628

約数和(自身を除く): 689052868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6500497, 13000994, 26001988, 32502485, 52003976, 65004970, 104007952, 130009940, 260019880, 520039760]

約数ペア:

[(1, 520039760), (2, 260019880), (4, 130009940), (5, 104007952), (8, 65004970), (10, 52003976), (16, 32502485), (20, 26001988), (40, 13000994), (80, 6500497)]