16657240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4679}}^1$

素因数の和:4779

約数の個数: 32

約数和(自身を含む): 37908000

約数和(自身を除く): 21250760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 4679, 9358, 18716, 23395, 37432, 46790, 93580, 187160, 416431, 832862, 1665724, 2082155, 3331448, 4164310, 8328620, 16657240]

約数ペア:

[(1, 16657240), (2, 8328620), (4, 4164310), (5, 3331448), (8, 2082155), (10, 1665724), (20, 832862), (40, 416431), (89, 187160), (178, 93580), (356, 46790), (445, 37432), (712, 23395), (890, 18716), (1780, 9358), (3560, 4679)]