8581540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2053}}^1$

素因数の和:2092

約数の個数: 48

約数和(自身を含む): 20704320

約数和(自身を除く): 12122780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2053, 2090, 4106, 4180, 8212, 10265, 20530, 22583, 39007, 41060, 45166, 78014, 90332, 112915, 156028, 195035, 225830, 390070, 429077, 451660, 780140, 858154, 1716308, 2145385, 4290770, 8581540]

約数ペア:

[(1, 8581540), (2, 4290770), (4, 2145385), (5, 1716308), (10, 858154), (11, 780140), (19, 451660), (20, 429077), (22, 390070), (38, 225830), (44, 195035), (55, 156028), (76, 112915), (95, 90332), (110, 78014), (190, 45166), (209, 41060), (220, 39007), (380, 22583), (418, 20530), (836, 10265), (1045, 8212), (2053, 4180), (2090, 4106)]