17852020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 22064780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 431, 436, 545, 862, 1090, 1724, 2071, 2155, 2180, 4142, 4310, 8189, 8284, 8620, 10355, 16378, 20710, 32756, 40945, 41420, 46979, 81890, 93958, 163780, 187916, 234895, 469790, 892601, 939580, 1785202, 3570404, 4463005, 8926010, 17852020]

約数ペア:

[(1, 17852020), (2, 8926010), (4, 4463005), (5, 3570404), (10, 1785202), (19, 939580), (20, 892601), (38, 469790), (76, 234895), (95, 187916), (109, 163780), (190, 93958), (218, 81890), (380, 46979), (431, 41420), (436, 40945), (545, 32756), (862, 20710), (1090, 16378), (1724, 10355), (2071, 8620), (2155, 8284), (2180, 8189), (4142, 4310)]