128540960

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21713}}^1$

素因数の和:21765

約数の個数: 48

約数和(自身を含む): 311899896

約数和(自身を除く): 183358936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 5920, 21713, 43426, 86852, 108565, 173704, 217130, 347408, 434260, 694816, 803381, 868520, 1606762, 1737040, 3213524, 3474080, 4016905, 6427048, 8033810, 12854096, 16067620, 25708192, 32135240, 64270480, 128540960]

約数ペア:

[(1, 128540960), (2, 64270480), (4, 32135240), (5, 25708192), (8, 16067620), (10, 12854096), (16, 8033810), (20, 6427048), (32, 4016905), (37, 3474080), (40, 3213524), (74, 1737040), (80, 1606762), (148, 868520), (160, 803381), (185, 694816), (296, 434260), (370, 347408), (592, 217130), (740, 173704), (1184, 108565), (1480, 86852), (2960, 43426), (5920, 21713)]