168845380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{18719}}^1$

素因数の和:18780

約数の個数: 48

約数和(自身を含む): 396264960

約数和(自身を除く): 227419580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 18719, 37438, 74876, 93595, 187190, 205909, 374380, 411818, 767479, 823636, 1029545, 1534958, 2059090, 3069916, 3837395, 4118180, 7674790, 8442269, 15349580, 16884538, 33769076, 42211345, 84422690, 168845380]

約数ペア:

[(1, 168845380), (2, 84422690), (4, 42211345), (5, 33769076), (10, 16884538), (11, 15349580), (20, 8442269), (22, 7674790), (41, 4118180), (44, 3837395), (55, 3069916), (82, 2059090), (110, 1534958), (164, 1029545), (205, 823636), (220, 767479), (410, 411818), (451, 374380), (820, 205909), (902, 187190), (1804, 93595), (2255, 74876), (4510, 37438), (9020, 18719)]