1456040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 3321000

約数和(自身を除く): 1864960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 409, 445, 712, 818, 890, 1636, 1780, 2045, 3272, 3560, 4090, 8180, 16360, 36401, 72802, 145604, 182005, 291208, 364010, 728020, 1456040]

約数ペア:

[(1, 1456040), (2, 728020), (4, 364010), (5, 291208), (8, 182005), (10, 145604), (20, 72802), (40, 36401), (89, 16360), (178, 8180), (356, 4090), (409, 3560), (445, 3272), (712, 2045), (818, 1780), (890, 1636)]