19026740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{523}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 42783552

約数和(自身を除く): 23756812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 107, 170, 214, 340, 428, 523, 535, 1046, 1070, 1819, 2092, 2140, 2615, 3638, 5230, 7276, 8891, 9095, 10460, 17782, 18190, 35564, 36380, 44455, 55961, 88910, 111922, 177820, 223844, 279805, 559610, 951337, 1119220, 1902674, 3805348, 4756685, 9513370, 19026740]

約数ペア:

[(1, 19026740), (2, 9513370), (4, 4756685), (5, 3805348), (10, 1902674), (17, 1119220), (20, 951337), (34, 559610), (68, 279805), (85, 223844), (107, 177820), (170, 111922), (214, 88910), (340, 55961), (428, 44455), (523, 36380), (535, 35564), (1046, 18190), (1070, 17782), (1819, 10460), (2092, 9095), (2140, 8891), (2615, 7276), (3638, 5230)]