20748123604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{39769}}^1$

素因数の和:39992

約数の個数: 48

約数和(自身を含む): 39909990400

約数和(自身を除く): 19161866796

約数列:

[1, 2, 4, 13, 26, 52, 79, 127, 158, 254, 316, 508, 1027, 1651, 2054, 3302, 4108, 6604, 10033, 20066, 39769, 40132, 79538, 130429, 159076, 260858, 516997, 521716, 1033994, 2067988, 3141751, 5050663, 6283502, 10101326, 12567004, 20202652, 40842763, 65658619, 81685526, 131317238, 163371052, 262634476, 399002377, 798004754, 1596009508, 5187030901, 10374061802, 20748123604]

約数ペア:

[(1, 20748123604), (2, 10374061802), (4, 5187030901), (13, 1596009508), (26, 798004754), (52, 399002377), (79, 262634476), (127, 163371052), (158, 131317238), (254, 81685526), (316, 65658619), (508, 40842763), (1027, 20202652), (1651, 12567004), (2054, 10101326), (3302, 6283502), (4108, 5050663), (6604, 3141751), (10033, 2067988), (20066, 1033994), (39769, 521716), (40132, 516997), (79538, 260858), (130429, 159076)]