66281840

素因数分解:

$2^4\times 5^1\times {\mathrm{828523}}^1$

素因数の和:828536

約数の個数: 20

約数和(自身を含む): 154105464

約数和(自身を除く): 87823624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 828523, 1657046, 3314092, 4142615, 6628184, 8285230, 13256368, 16570460, 33140920, 66281840]

約数ペア:

[(1, 66281840), (2, 33140920), (4, 16570460), (5, 13256368), (8, 8285230), (10, 6628184), (16, 4142615), (20, 3314092), (40, 1657046), (80, 828523)]