204567920

素因数分解:

$2^4\times 5^1\times {\mathrm{2557099}}^1$

素因数の和:2557112

約数の個数: 20

約数和(自身を含む): 475620600

約数和(自身を除く): 271052680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2557099, 5114198, 10228396, 12785495, 20456792, 25570990, 40913584, 51141980, 102283960, 204567920]

約数ペア:

[(1, 204567920), (2, 102283960), (4, 51141980), (5, 40913584), (8, 25570990), (10, 20456792), (16, 12785495), (20, 10228396), (40, 5114198), (80, 2557099)]