399243840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{415879}}^1$

素因数の和:415899

約数の個数: 56

約数和(自身を含む): 1267602240

約数和(自身を除く): 868358400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 415879, 831758, 1247637, 1663516, 2079395, 2495274, 3327032, 4158790, 4990548, 6238185, 6654064, 8317580, 9981096, 12476370, 13308128, 16635160, 19962192, 24952740, 26616256, 33270320, 39924384, 49905480, 66540640, 79848768, 99810960, 133081280, 199621920, 399243840]

約数ペア:

[(1, 399243840), (2, 199621920), (3, 133081280), (4, 99810960), (5, 79848768), (6, 66540640), (8, 49905480), (10, 39924384), (12, 33270320), (15, 26616256), (16, 24952740), (20, 19962192), (24, 16635160), (30, 13308128), (32, 12476370), (40, 9981096), (48, 8317580), (60, 6654064), (64, 6238185), (80, 4990548), (96, 4158790), (120, 3327032), (160, 2495274), (192, 2079395), (240, 1663516), (320, 1247637), (480, 831758), (960, 415879)]