77638720

素因数分解:

$2^6\times 5^1\times {\mathrm{242621}}^1$

素因数の和:242638

約数の個数: 28

約数和(自身を含む): 184877964

約数和(自身を除く): 107239244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 242621, 485242, 970484, 1213105, 1940968, 2426210, 3881936, 4852420, 7763872, 9704840, 15527744, 19409680, 38819360, 77638720]

約数ペア:

[(1, 77638720), (2, 38819360), (4, 19409680), (5, 15527744), (8, 9704840), (10, 7763872), (16, 4852420), (20, 3881936), (32, 2426210), (40, 1940968), (64, 1213105), (80, 970484), (160, 485242), (320, 242621)]