8491420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 20579328

約数和(自身を除く): 12087908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 463, 524, 655, 917, 926, 1310, 1834, 1852, 2315, 2620, 3241, 3668, 4585, 4630, 6482, 9170, 9260, 12964, 16205, 18340, 32410, 60653, 64820, 121306, 242612, 303265, 424571, 606530, 849142, 1213060, 1698284, 2122855, 4245710, 8491420]

約数ペア:

[(1, 8491420), (2, 4245710), (4, 2122855), (5, 1698284), (7, 1213060), (10, 849142), (14, 606530), (20, 424571), (28, 303265), (35, 242612), (70, 121306), (131, 64820), (140, 60653), (262, 32410), (463, 18340), (524, 16205), (655, 12964), (917, 9260), (926, 9170), (1310, 6482), (1834, 4630), (1852, 4585), (2315, 3668), (2620, 3241)]