275840

素因数分解:

$2^7\times 5^1\times {\mathrm{431}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 660960

約数和(自身を除く): 385120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 431, 640, 862, 1724, 2155, 3448, 4310, 6896, 8620, 13792, 17240, 27584, 34480, 55168, 68960, 137920, 275840]

約数ペア:

[(1, 275840), (2, 137920), (4, 68960), (5, 55168), (8, 34480), (10, 27584), (16, 17240), (20, 13792), (32, 8620), (40, 6896), (64, 4310), (80, 3448), (128, 2155), (160, 1724), (320, 862), (431, 640)]