2118400

素因数分解:

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

素因数の和:357

約数の個数: 54

約数和(自身を含む): 5259212

約数和(自身を除く): 3140812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 331, 400, 640, 662, 800, 1280, 1324, 1600, 1655, 2648, 3200, 3310, 5296, 6400, 6620, 8275, 10592, 13240, 16550, 21184, 26480, 33100, 42368, 52960, 66200, 84736, 105920, 132400, 211840, 264800, 423680, 529600, 1059200, 2118400]

約数ペア:

[(1, 2118400), (2, 1059200), (4, 529600), (5, 423680), (8, 264800), (10, 211840), (16, 132400), (20, 105920), (25, 84736), (32, 66200), (40, 52960), (50, 42368), (64, 33100), (80, 26480), (100, 21184), (128, 16550), (160, 13240), (200, 10592), (256, 8275), (320, 6620), (331, 6400), (400, 5296), (640, 3310), (662, 3200), (800, 2648), (1280, 1655), (1324, 1600)]