81758440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120233}}^1$

素因数の和:120261

約数の個数: 32

約数和(自身を含む): 194779080

約数和(自身を除く): 113020640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 120233, 240466, 480932, 601165, 961864, 1202330, 2043961, 2404660, 4087922, 4809320, 8175844, 10219805, 16351688, 20439610, 40879220, 81758440]

約数ペア:

[(1, 81758440), (2, 40879220), (4, 20439610), (5, 16351688), (8, 10219805), (10, 8175844), (17, 4809320), (20, 4087922), (34, 2404660), (40, 2043961), (68, 1202330), (85, 961864), (136, 601165), (170, 480932), (340, 240466), (680, 120233)]