211840

素因数分解:

$2^7\times 5^1\times {\mathrm{331}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 507960

約数和(自身を除く): 296120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 331, 640, 662, 1324, 1655, 2648, 3310, 5296, 6620, 10592, 13240, 21184, 26480, 42368, 52960, 105920, 211840]

約数ペア:

[(1, 211840), (2, 105920), (4, 52960), (5, 42368), (8, 26480), (10, 21184), (16, 13240), (20, 10592), (32, 6620), (40, 5296), (64, 3310), (80, 2648), (128, 1655), (160, 1324), (320, 662), (331, 640)]