3989420

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1321}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 8439648

約数和(自身を除く): 4450228

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1321, 1510, 2642, 3020, 5284, 6605, 13210, 26420, 199471, 398942, 797884, 997355, 1994710, 3989420]

約数ペア:

[(1, 3989420), (2, 1994710), (4, 997355), (5, 797884), (10, 398942), (20, 199471), (151, 26420), (302, 13210), (604, 6605), (755, 5284), (1321, 3020), (1510, 2642)]