66841720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2081}}^1$

素因数の和:2176

約数の個数: 64

約数和(自身を含む): 166393440

約数和(自身を除く): 99551720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 584, 730, 803, 1460, 1606, 2081, 2920, 3212, 4015, 4162, 6424, 8030, 8324, 10405, 16060, 16648, 20810, 22891, 32120, 41620, 45782, 83240, 91564, 114455, 151913, 183128, 228910, 303826, 457820, 607652, 759565, 915640, 1215304, 1519130, 1671043, 3038260, 3342086, 6076520, 6684172, 8355215, 13368344, 16710430, 33420860, 66841720]

約数ペア:

[(1, 66841720), (2, 33420860), (4, 16710430), (5, 13368344), (8, 8355215), (10, 6684172), (11, 6076520), (20, 3342086), (22, 3038260), (40, 1671043), (44, 1519130), (55, 1215304), (73, 915640), (88, 759565), (110, 607652), (146, 457820), (220, 303826), (292, 228910), (365, 183128), (440, 151913), (584, 114455), (730, 91564), (803, 83240), (1460, 45782), (1606, 41620), (2081, 32120), (2920, 22891), (3212, 20810), (4015, 16648), (4162, 16060), (6424, 10405), (8030, 8324)]