19887240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1609}}^1$

素因数の和:1726

約数の個数: 64

約数和(自身を含む): 60278400

約数和(自身を除く): 40391160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1609, 2060, 2472, 3090, 3218, 4120, 4827, 6180, 6436, 8045, 9654, 12360, 12872, 16090, 19308, 24135, 32180, 38616, 48270, 64360, 96540, 165727, 193080, 331454, 497181, 662908, 828635, 994362, 1325816, 1657270, 1988724, 2485905, 3314540, 3977448, 4971810, 6629080, 9943620, 19887240]

約数ペア:

[(1, 19887240), (2, 9943620), (3, 6629080), (4, 4971810), (5, 3977448), (6, 3314540), (8, 2485905), (10, 1988724), (12, 1657270), (15, 1325816), (20, 994362), (24, 828635), (30, 662908), (40, 497181), (60, 331454), (103, 193080), (120, 165727), (206, 96540), (309, 64360), (412, 48270), (515, 38616), (618, 32180), (824, 24135), (1030, 19308), (1236, 16090), (1545, 12872), (1609, 12360), (2060, 9654), (2472, 8045), (3090, 6436), (3218, 6180), (4120, 4827)]