123137380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1093}}^1$

素因数の和:1276

約数の個数: 48

約数和(自身を含む): 266865984

約数和(自身を除く): 143728604

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 131, 172, 215, 262, 430, 524, 655, 860, 1093, 1310, 2186, 2620, 4372, 5465, 5633, 10930, 11266, 21860, 22532, 28165, 46999, 56330, 93998, 112660, 143183, 187996, 234995, 286366, 469990, 572732, 715915, 939980, 1431830, 2863660, 6156869, 12313738, 24627476, 30784345, 61568690, 123137380]

約数ペア:

[(1, 123137380), (2, 61568690), (4, 30784345), (5, 24627476), (10, 12313738), (20, 6156869), (43, 2863660), (86, 1431830), (131, 939980), (172, 715915), (215, 572732), (262, 469990), (430, 286366), (524, 234995), (655, 187996), (860, 143183), (1093, 112660), (1310, 93998), (2186, 56330), (2620, 46999), (4372, 28165), (5465, 22532), (5633, 21860), (10930, 11266)]