16947620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 37914240

約数和(自身を除く): 20966620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 433, 515, 866, 1030, 1732, 1957, 2060, 2165, 3914, 4330, 7828, 8227, 8660, 9785, 16454, 19570, 32908, 39140, 41135, 44599, 82270, 89198, 164540, 178396, 222995, 445990, 847381, 891980, 1694762, 3389524, 4236905, 8473810, 16947620]

約数ペア:

[(1, 16947620), (2, 8473810), (4, 4236905), (5, 3389524), (10, 1694762), (19, 891980), (20, 847381), (38, 445990), (76, 222995), (95, 178396), (103, 164540), (190, 89198), (206, 82270), (380, 44599), (412, 41135), (433, 39140), (515, 32908), (866, 19570), (1030, 16454), (1732, 9785), (1957, 8660), (2060, 8227), (2165, 7828), (3914, 4330)]