19905660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110587}}^1$

素因数の和:110602

約数の個数: 36

約数和(自身を含む): 60381048

約数和(自身を除く): 40475388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110587, 221174, 331761, 442348, 552935, 663522, 995283, 1105870, 1327044, 1658805, 1990566, 2211740, 3317610, 3981132, 4976415, 6635220, 9952830, 19905660]

約数ペア:

[(1, 19905660), (2, 9952830), (3, 6635220), (4, 4976415), (5, 3981132), (6, 3317610), (9, 2211740), (10, 1990566), (12, 1658805), (15, 1327044), (18, 1105870), (20, 995283), (30, 663522), (36, 552935), (45, 442348), (60, 331761), (90, 221174), (180, 110587)]