423680

素因数分解:

$2^8\times 5^1\times {\mathrm{331}}^1$

素因数の和:352

約数の個数: 36

約数和(自身を含む): 1017912

約数和(自身を除く): 594232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 331, 640, 662, 1280, 1324, 1655, 2648, 3310, 5296, 6620, 10592, 13240, 21184, 26480, 42368, 52960, 84736, 105920, 211840, 423680]

約数ペア:

[(1, 423680), (2, 211840), (4, 105920), (5, 84736), (8, 52960), (10, 42368), (16, 26480), (20, 21184), (32, 13240), (40, 10592), (64, 6620), (80, 5296), (128, 3310), (160, 2648), (256, 1655), (320, 1324), (331, 1280), (640, 662)]