200980520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{386501}}^1$

素因数の和:386525

約数の個数: 32

約数和(自身を含む): 486992520

約数和(自身を除く): 286012000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 386501, 773002, 1546004, 1932505, 3092008, 3865010, 5024513, 7730020, 10049026, 15460040, 20098052, 25122565, 40196104, 50245130, 100490260, 200980520]

約数ペア:

[(1, 200980520), (2, 100490260), (4, 50245130), (5, 40196104), (8, 25122565), (10, 20098052), (13, 15460040), (20, 10049026), (26, 7730020), (40, 5024513), (52, 3865010), (65, 3092008), (104, 1932505), (130, 1546004), (260, 773002), (520, 386501)]