1918288995

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{25339}}^1$

素因数の和:25464

約数の個数: 48

約数和(自身を含む): 3605172480

約数和(自身を除く): 1686883485

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 103, 105, 147, 245, 309, 515, 721, 735, 1545, 2163, 3605, 5047, 10815, 15141, 25235, 25339, 75705, 76017, 126695, 177373, 380085, 532119, 886865, 1241611, 2609917, 2660595, 3724833, 6208055, 7829751, 13049585, 18269419, 18624165, 39148755, 54808257, 91347095, 127885933, 274041285, 383657799, 639429665, 1918288995]

約数ペア:

[(1, 1918288995), (3, 639429665), (5, 383657799), (7, 274041285), (15, 127885933), (21, 91347095), (35, 54808257), (49, 39148755), (103, 18624165), (105, 18269419), (147, 13049585), (245, 7829751), (309, 6208055), (515, 3724833), (721, 2660595), (735, 2609917), (1545, 1241611), (2163, 886865), (3605, 532119), (5047, 380085), (10815, 177373), (15141, 126695), (25235, 76017), (25339, 75705)]