20811650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{1153}}^1$

素因数の和:1203

約数の個数: 36

約数和(自身を含む): 40889682

約数和(自身を除く): 20078032

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 361, 475, 722, 950, 1153, 1805, 2306, 3610, 5765, 9025, 11530, 18050, 21907, 28825, 43814, 57650, 109535, 219070, 416233, 547675, 832466, 1095350, 2081165, 4162330, 10405825, 20811650]

約数ペア:

[(1, 20811650), (2, 10405825), (5, 4162330), (10, 2081165), (19, 1095350), (25, 832466), (38, 547675), (50, 416233), (95, 219070), (190, 109535), (361, 57650), (475, 43814), (722, 28825), (950, 21907), (1153, 18050), (1805, 11530), (2306, 9025), (3610, 5765)]