921555580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{9719}}^1$

素因数の和:10170

約数の個数: 48

約数和(自身を含む): 2116316160

約数和(自身を除く): 1194760580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 431, 862, 1724, 2155, 4310, 4741, 8620, 9482, 9719, 18964, 19438, 23705, 38876, 47410, 48595, 94820, 97190, 106909, 194380, 213818, 427636, 534545, 1069090, 2138180, 4188889, 8377778, 16755556, 20944445, 41888890, 46077779, 83777780, 92155558, 184311116, 230388895, 460777790, 921555580]

約数ペア:

[(1, 921555580), (2, 460777790), (4, 230388895), (5, 184311116), (10, 92155558), (11, 83777780), (20, 46077779), (22, 41888890), (44, 20944445), (55, 16755556), (110, 8377778), (220, 4188889), (431, 2138180), (862, 1069090), (1724, 534545), (2155, 427636), (4310, 213818), (4741, 194380), (8620, 106909), (9482, 97190), (9719, 94820), (18964, 48595), (19438, 47410), (23705, 38876)]