128480960

素因数分解:

$2^6\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1213}}^1$

素因数の和:1561

約数の個数: 56

約数和(自身を含む): 307122576

約数和(自身を除く): 178641616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 331, 662, 1213, 1324, 1655, 2426, 2648, 3310, 4852, 5296, 6065, 6620, 9704, 10592, 12130, 13240, 19408, 21184, 24260, 26480, 38816, 48520, 52960, 77632, 97040, 105920, 194080, 388160, 401503, 803006, 1606012, 2007515, 3212024, 4015030, 6424048, 8030060, 12848096, 16060120, 25696192, 32120240, 64240480, 128480960]

約数ペア:

[(1, 128480960), (2, 64240480), (4, 32120240), (5, 25696192), (8, 16060120), (10, 12848096), (16, 8030060), (20, 6424048), (32, 4015030), (40, 3212024), (64, 2007515), (80, 1606012), (160, 803006), (320, 401503), (331, 388160), (662, 194080), (1213, 105920), (1324, 97040), (1655, 77632), (2426, 52960), (2648, 48520), (3310, 38816), (4852, 26480), (5296, 24260), (6065, 21184), (6620, 19408), (9704, 13240), (10592, 12130)]