20699540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2647}}^1$

素因数の和:2696

約数の個数: 48

約数和(自身を含む): 48045312

約数和(自身を除く): 27345772

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2647, 3910, 5294, 7820, 10588, 13235, 26470, 44999, 52940, 60881, 89998, 121762, 179996, 224995, 243524, 304405, 449990, 608810, 899980, 1034977, 1217620, 2069954, 4139908, 5174885, 10349770, 20699540]

約数ペア:

[(1, 20699540), (2, 10349770), (4, 5174885), (5, 4139908), (10, 2069954), (17, 1217620), (20, 1034977), (23, 899980), (34, 608810), (46, 449990), (68, 304405), (85, 243524), (92, 224995), (115, 179996), (170, 121762), (230, 89998), (340, 60881), (391, 52940), (460, 44999), (782, 26470), (1564, 13235), (1955, 10588), (2647, 7820), (3910, 5294)]