64516040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 149387760

約数和(自身を除く): 84871720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 137, 193, 244, 274, 305, 386, 488, 548, 610, 685, 772, 965, 1096, 1220, 1370, 1544, 1930, 2440, 2740, 3860, 5480, 7720, 8357, 11773, 16714, 23546, 26441, 33428, 41785, 47092, 52882, 58865, 66856, 83570, 94184, 105764, 117730, 132205, 167140, 211528, 235460, 264410, 334280, 470920, 528820, 1057640, 1612901, 3225802, 6451604, 8064505, 12903208, 16129010, 32258020, 64516040]

約数ペア:

[(1, 64516040), (2, 32258020), (4, 16129010), (5, 12903208), (8, 8064505), (10, 6451604), (20, 3225802), (40, 1612901), (61, 1057640), (122, 528820), (137, 470920), (193, 334280), (244, 264410), (274, 235460), (305, 211528), (386, 167140), (488, 132205), (548, 117730), (610, 105764), (685, 94184), (772, 83570), (965, 66856), (1096, 58865), (1220, 52882), (1370, 47092), (1544, 41785), (1930, 33428), (2440, 26441), (2740, 23546), (3860, 16714), (5480, 11773), (7720, 8357)]