128896960

素因数分解:

$2^6\times 5^1\times {\mathrm{402803}}^1$

素因数の和:402820

約数の個数: 28

約数和(自身を含む): 306936648

約数和(自身を除く): 178039688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 402803, 805606, 1611212, 2014015, 3222424, 4028030, 6444848, 8056060, 12889696, 16112120, 25779392, 32224240, 64448480, 128896960]

約数ペア:

[(1, 128896960), (2, 64448480), (4, 32224240), (5, 25779392), (8, 16112120), (10, 12889696), (16, 8056060), (20, 6444848), (32, 4028030), (40, 3222424), (64, 2014015), (80, 1611212), (160, 805606), (320, 402803)]