18532820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 40452048

約数和(自身を除く): 21919228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 233, 388, 410, 466, 485, 820, 932, 970, 1165, 1940, 2330, 3977, 4660, 7954, 9553, 15908, 19106, 19885, 22601, 38212, 39770, 45202, 47765, 79540, 90404, 95530, 113005, 191060, 226010, 452020, 926641, 1853282, 3706564, 4633205, 9266410, 18532820]

約数ペア:

[(1, 18532820), (2, 9266410), (4, 4633205), (5, 3706564), (10, 1853282), (20, 926641), (41, 452020), (82, 226010), (97, 191060), (164, 113005), (194, 95530), (205, 90404), (233, 79540), (388, 47765), (410, 45202), (466, 39770), (485, 38212), (820, 22601), (932, 19885), (970, 19106), (1165, 15908), (1940, 9553), (2330, 7954), (3977, 4660)]