138505520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55849}}^1$

素因数の和:55893

約数の個数: 40

約数和(自身を含む): 332419200

約数和(自身を除く): 193913680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 55849, 111698, 223396, 279245, 446792, 558490, 893584, 1116980, 1731319, 2233960, 3462638, 4467920, 6925276, 8656595, 13850552, 17313190, 27701104, 34626380, 69252760, 138505520]

約数ペア:

[(1, 138505520), (2, 69252760), (4, 34626380), (5, 27701104), (8, 17313190), (10, 13850552), (16, 8656595), (20, 6925276), (31, 4467920), (40, 3462638), (62, 2233960), (80, 1731319), (124, 1116980), (155, 893584), (248, 558490), (310, 446792), (496, 279245), (620, 223396), (1240, 111698), (2480, 55849)]