69808120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 167378400

約数和(自身を除く): 97570280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 251, 340, 409, 502, 680, 818, 1004, 1255, 1636, 2008, 2045, 2510, 3272, 4090, 4267, 5020, 6953, 8180, 8534, 10040, 13906, 16360, 17068, 21335, 27812, 34136, 34765, 42670, 55624, 69530, 85340, 102659, 139060, 170680, 205318, 278120, 410636, 513295, 821272, 1026590, 1745203, 2053180, 3490406, 4106360, 6980812, 8726015, 13961624, 17452030, 34904060, 69808120]

約数ペア:

[(1, 69808120), (2, 34904060), (4, 17452030), (5, 13961624), (8, 8726015), (10, 6980812), (17, 4106360), (20, 3490406), (34, 2053180), (40, 1745203), (68, 1026590), (85, 821272), (136, 513295), (170, 410636), (251, 278120), (340, 205318), (409, 170680), (502, 139060), (680, 102659), (818, 85340), (1004, 69530), (1255, 55624), (1636, 42670), (2008, 34765), (2045, 34136), (2510, 27812), (3272, 21335), (4090, 17068), (4267, 16360), (5020, 13906), (6953, 10040), (8180, 8534)]