20275420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4007}}^1$

素因数の和:4050

約数の個数: 48

約数和(自身を含む): 48480768

約数和(自身を除く): 28205348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 4007, 5060, 8014, 16028, 20035, 40070, 44077, 80140, 88154, 92161, 176308, 184322, 220385, 368644, 440770, 460805, 881540, 921610, 1013771, 1843220, 2027542, 4055084, 5068855, 10137710, 20275420]

約数ペア:

[(1, 20275420), (2, 10137710), (4, 5068855), (5, 4055084), (10, 2027542), (11, 1843220), (20, 1013771), (22, 921610), (23, 881540), (44, 460805), (46, 440770), (55, 368644), (92, 220385), (110, 184322), (115, 176308), (220, 92161), (230, 88154), (253, 80140), (460, 44077), (506, 40070), (1012, 20035), (1265, 16028), (2530, 8014), (4007, 5060)]