19908540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110603}}^1$

素因数の和:110618

約数の個数: 36

約数和(自身を含む): 60389784

約数和(自身を除く): 40481244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110603, 221206, 331809, 442412, 553015, 663618, 995427, 1106030, 1327236, 1659045, 1990854, 2212060, 3318090, 3981708, 4977135, 6636180, 9954270, 19908540]

約数ペア:

[(1, 19908540), (2, 9954270), (3, 6636180), (4, 4977135), (5, 3981708), (6, 3318090), (9, 2212060), (10, 1990854), (12, 1659045), (15, 1327236), (18, 1106030), (20, 995427), (30, 663618), (36, 553015), (45, 442412), (60, 331809), (90, 221206), (180, 110603)]