18706860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1009}}^1$

素因数の和:1127

約数の個数: 72

約数和(自身を含む): 57351840

約数和(自身を除く): 38644980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 103, 180, 206, 309, 412, 515, 618, 927, 1009, 1030, 1236, 1545, 1854, 2018, 2060, 3027, 3090, 3708, 4036, 4635, 5045, 6054, 6180, 9081, 9270, 10090, 12108, 15135, 18162, 18540, 20180, 30270, 36324, 45405, 60540, 90810, 103927, 181620, 207854, 311781, 415708, 519635, 623562, 935343, 1039270, 1247124, 1558905, 1870686, 2078540, 3117810, 3741372, 4676715, 6235620, 9353430, 18706860]

約数ペア:

[(1, 18706860), (2, 9353430), (3, 6235620), (4, 4676715), (5, 3741372), (6, 3117810), (9, 2078540), (10, 1870686), (12, 1558905), (15, 1247124), (18, 1039270), (20, 935343), (30, 623562), (36, 519635), (45, 415708), (60, 311781), (90, 207854), (103, 181620), (180, 103927), (206, 90810), (309, 60540), (412, 45405), (515, 36324), (618, 30270), (927, 20180), (1009, 18540), (1030, 18162), (1236, 15135), (1545, 12108), (1854, 10090), (2018, 9270), (2060, 9081), (3027, 6180), (3090, 6054), (3708, 5045), (4036, 4635)]