20319680

素因数分解:

$2^6\times 5^1\times {\mathrm{63499}}^1$

素因数の和:63516

約数の個数: 28

約数和(自身を含む): 48387000

約数和(自身を除く): 28067320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63499, 126998, 253996, 317495, 507992, 634990, 1015984, 1269980, 2031968, 2539960, 4063936, 5079920, 10159840, 20319680]

約数ペア:

[(1, 20319680), (2, 10159840), (4, 5079920), (5, 4063936), (8, 2539960), (10, 2031968), (16, 1269980), (20, 1015984), (32, 634990), (40, 507992), (64, 317495), (80, 253996), (160, 126998), (320, 63499)]