80338880

素因数分解:

$2^6\times 5^1\times {\mathrm{251059}}^1$

素因数の和:251076

約数の個数: 28

約数和(自身を含む): 191307720

約数和(自身を除く): 110968840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 251059, 502118, 1004236, 1255295, 2008472, 2510590, 4016944, 5021180, 8033888, 10042360, 16067776, 20084720, 40169440, 80338880]

約数ペア:

[(1, 80338880), (2, 40169440), (4, 20084720), (5, 16067776), (8, 10042360), (10, 8033888), (16, 5021180), (20, 4016944), (32, 2510590), (40, 2008472), (64, 1255295), (80, 1004236), (160, 502118), (320, 251059)]