12152020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{283}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 27195840

約数和(自身を除く): 15043820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 283, 380, 452, 565, 566, 1130, 1132, 1415, 2147, 2260, 2830, 4294, 5377, 5660, 8588, 10735, 10754, 21470, 21508, 26885, 31979, 42940, 53770, 63958, 107540, 127916, 159895, 319790, 607601, 639580, 1215202, 2430404, 3038005, 6076010, 12152020]

約数ペア:

[(1, 12152020), (2, 6076010), (4, 3038005), (5, 2430404), (10, 1215202), (19, 639580), (20, 607601), (38, 319790), (76, 159895), (95, 127916), (113, 107540), (190, 63958), (226, 53770), (283, 42940), (380, 31979), (452, 26885), (565, 21508), (566, 21470), (1130, 10754), (1132, 10735), (1415, 8588), (2147, 5660), (2260, 5377), (2830, 4294)]