7217920

素因数分解:

$2^8\times 5^1\times {\mathrm{5639}}^1$

素因数の和:5660

約数の個数: 36

約数和(自身を含む): 17292240

約数和(自身を除く): 10074320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 5639, 11278, 22556, 28195, 45112, 56390, 90224, 112780, 180448, 225560, 360896, 451120, 721792, 902240, 1443584, 1804480, 3608960, 7217920]

約数ペア:

[(1, 7217920), (2, 3608960), (4, 1804480), (5, 1443584), (8, 902240), (10, 721792), (16, 451120), (20, 360896), (32, 225560), (40, 180448), (64, 112780), (80, 90224), (128, 56390), (160, 45112), (256, 28195), (320, 22556), (640, 11278), (1280, 5639)]