26931760

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7829}}^1$

素因数の和:7885

約数の個数: 40

約数和(自身を含む): 64080720

約数和(自身を除く): 37148960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 7829, 15658, 31316, 39145, 62632, 78290, 125264, 156580, 313160, 336647, 626320, 673294, 1346588, 1683235, 2693176, 3366470, 5386352, 6732940, 13465880, 26931760]

約数ペア:

[(1, 26931760), (2, 13465880), (4, 6732940), (5, 5386352), (8, 3366470), (10, 2693176), (16, 1683235), (20, 1346588), (40, 673294), (43, 626320), (80, 336647), (86, 313160), (172, 156580), (215, 125264), (344, 78290), (430, 62632), (688, 39145), (860, 31316), (1720, 15658), (3440, 7829)]