12871540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1427}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 30227904

約数和(自身を除く): 17356364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1427, 1804, 2255, 2854, 4510, 5708, 7135, 9020, 14270, 15697, 28540, 31394, 58507, 62788, 78485, 117014, 156970, 234028, 292535, 313940, 585070, 643577, 1170140, 1287154, 2574308, 3217885, 6435770, 12871540]

約数ペア:

[(1, 12871540), (2, 6435770), (4, 3217885), (5, 2574308), (10, 1287154), (11, 1170140), (20, 643577), (22, 585070), (41, 313940), (44, 292535), (55, 234028), (82, 156970), (110, 117014), (164, 78485), (205, 62788), (220, 58507), (410, 31394), (451, 28540), (820, 15697), (902, 14270), (1427, 9020), (1804, 7135), (2255, 5708), (2854, 4510)]