647942384

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:462

約数の個数: 80

約数和(自身を含む): 1349913600

約数和(自身を除く): 701971216

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 139, 184, 212, 239, 278, 368, 424, 478, 556, 848, 956, 1112, 1219, 1912, 2224, 2438, 3197, 3824, 4876, 5497, 6394, 7367, 9752, 10994, 12667, 12788, 14734, 19504, 21988, 25334, 25576, 29468, 33221, 43976, 50668, 51152, 58936, 66442, 87952, 101336, 117872, 132884, 169441, 202672, 265768, 291341, 338882, 531536, 582682, 677764, 764083, 1165364, 1355528, 1528166, 1760713, 2330728, 2711056, 3056332, 3521426, 4661456, 6112664, 7042852, 12225328, 14085704, 28171408, 40496399, 80992798, 161985596, 323971192, 647942384]

約数ペア:

[(1, 647942384), (2, 323971192), (4, 161985596), (8, 80992798), (16, 40496399), (23, 28171408), (46, 14085704), (53, 12225328), (92, 7042852), (106, 6112664), (139, 4661456), (184, 3521426), (212, 3056332), (239, 2711056), (278, 2330728), (368, 1760713), (424, 1528166), (478, 1355528), (556, 1165364), (848, 764083), (956, 677764), (1112, 582682), (1219, 531536), (1912, 338882), (2224, 291341), (2438, 265768), (3197, 202672), (3824, 169441), (4876, 132884), (5497, 117872), (6394, 101336), (7367, 87952), (9752, 66442), (10994, 58936), (12667, 51152), (12788, 50668), (14734, 43976), (19504, 33221), (21988, 29468), (25334, 25576)]