20273240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2999}}^1$

素因数の和:3036

約数の個数: 48

約数和(自身を含む): 49410000

約数和(自身を除く): 29136760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2999, 3380, 5998, 6760, 11996, 14995, 23992, 29990, 38987, 59980, 77974, 119960, 155948, 194935, 311896, 389870, 506831, 779740, 1013662, 1559480, 2027324, 2534155, 4054648, 5068310, 10136620, 20273240]

約数ペア:

[(1, 20273240), (2, 10136620), (4, 5068310), (5, 4054648), (8, 2534155), (10, 2027324), (13, 1559480), (20, 1013662), (26, 779740), (40, 506831), (52, 389870), (65, 311896), (104, 194935), (130, 155948), (169, 119960), (260, 77974), (338, 59980), (520, 38987), (676, 29990), (845, 23992), (1352, 14995), (1690, 11996), (2999, 6760), (3380, 5998)]