1278126190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{26959}}^1$

素因数の和:27408

約数の個数: 32

約数和(自身を含む): 2515691520

約数和(自身を除く): 1237565330

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 431, 862, 2155, 4310, 4741, 9482, 23705, 26959, 47410, 53918, 134795, 269590, 296549, 593098, 1482745, 2965490, 11619329, 23238658, 58096645, 116193290, 127812619, 255625238, 639063095, 1278126190]

約数ペア:

[(1, 1278126190), (2, 639063095), (5, 255625238), (10, 127812619), (11, 116193290), (22, 58096645), (55, 23238658), (110, 11619329), (431, 2965490), (862, 1482745), (2155, 593098), (4310, 296549), (4741, 269590), (9482, 134795), (23705, 53918), (26959, 47410)]