65558720

素因数分解:

$2^6\times 5^1\times {\mathrm{204871}}^1$

素因数の和:204888

約数の個数: 28

約数和(自身を含む): 156112464

約数和(自身を除く): 90553744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 204871, 409742, 819484, 1024355, 1638968, 2048710, 3277936, 4097420, 6555872, 8194840, 13111744, 16389680, 32779360, 65558720]

約数ペア:

[(1, 65558720), (2, 32779360), (4, 16389680), (5, 13111744), (8, 8194840), (10, 6555872), (16, 4097420), (20, 3277936), (32, 2048710), (40, 1638968), (64, 1024355), (80, 819484), (160, 409742), (320, 204871)]