31014040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18911}}^1$

素因数の和:18963

約数の個数: 32

約数和(自身を含む): 71487360

約数和(自身を除く): 40473320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18911, 37822, 75644, 94555, 151288, 189110, 378220, 756440, 775351, 1550702, 3101404, 3876755, 6202808, 7753510, 15507020, 31014040]

約数ペア:

[(1, 31014040), (2, 15507020), (4, 7753510), (5, 6202808), (8, 3876755), (10, 3101404), (20, 1550702), (40, 775351), (41, 756440), (82, 378220), (164, 189110), (205, 151288), (328, 94555), (410, 75644), (820, 37822), (1640, 18911)]