159221840

素因数分解:

$2^4\times 5^1\times {\mathrm{1990273}}^1$

素因数の和:1990286

約数の個数: 20

約数和(自身を含む): 370190964

約数和(自身を除く): 210969124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1990273, 3980546, 7961092, 9951365, 15922184, 19902730, 31844368, 39805460, 79610920, 159221840]

約数ペア:

[(1, 159221840), (2, 79610920), (4, 39805460), (5, 31844368), (8, 19902730), (10, 15922184), (16, 9951365), (20, 7961092), (40, 3980546), (80, 1990273)]