40639840

素因数分解:

$2^5\times 5^1\times {\mathrm{253999}}^1$

素因数の和:254014

約数の個数: 24

約数和(自身を含む): 96012000

約数和(自身を除く): 55372160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 253999, 507998, 1015996, 1269995, 2031992, 2539990, 4063984, 5079980, 8127968, 10159960, 20319920, 40639840]

約数ペア:

[(1, 40639840), (2, 20319920), (4, 10159960), (5, 8127968), (8, 5079980), (10, 4063984), (16, 2539990), (20, 2031992), (32, 1269995), (40, 1015996), (80, 507998), (160, 253999)]