18737920

素因数分解:

$2^8\times 5^1\times {\mathrm{14639}}^1$

素因数の和:14660

約数の個数: 36

約数和(自身を含む): 44886240

約数和(自身を除く): 26148320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 14639, 29278, 58556, 73195, 117112, 146390, 234224, 292780, 468448, 585560, 936896, 1171120, 1873792, 2342240, 3747584, 4684480, 9368960, 18737920]

約数ペア:

[(1, 18737920), (2, 9368960), (4, 4684480), (5, 3747584), (8, 2342240), (10, 1873792), (16, 1171120), (20, 936896), (32, 585560), (40, 468448), (64, 292780), (80, 234224), (128, 146390), (160, 117112), (256, 73195), (320, 58556), (640, 29278), (1280, 14639)]