81124635568

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{25409}}^1$

素因数の和:25646

約数の個数: 80

約数和(自身を含む): 167271793920

約数和(自身を除く): 86147158352

約数列:

[1, 2, 4, 8, 16, 31, 41, 62, 82, 124, 157, 164, 248, 314, 328, 496, 628, 656, 1256, 1271, 2512, 2542, 4867, 5084, 6437, 9734, 10168, 12874, 19468, 20336, 25409, 25748, 38936, 50818, 51496, 77872, 101636, 102992, 199547, 203272, 399094, 406544, 787679, 798188, 1041769, 1575358, 1596376, 2083538, 3150716, 3192752, 3989213, 4167076, 6301432, 7978426, 8334152, 12602864, 15956852, 16668304, 31913704, 32294839, 63827408, 64589678, 123665603, 129179356, 163557733, 247331206, 258358712, 327115466, 494662412, 516717424, 654230932, 989324824, 1308461864, 1978649648, 2616923728, 5070289723, 10140579446, 20281158892, 40562317784, 81124635568]

約数ペア:

[(1, 81124635568), (2, 40562317784), (4, 20281158892), (8, 10140579446), (16, 5070289723), (31, 2616923728), (41, 1978649648), (62, 1308461864), (82, 989324824), (124, 654230932), (157, 516717424), (164, 494662412), (248, 327115466), (314, 258358712), (328, 247331206), (496, 163557733), (628, 129179356), (656, 123665603), (1256, 64589678), (1271, 63827408), (2512, 32294839), (2542, 31913704), (4867, 16668304), (5084, 15956852), (6437, 12602864), (9734, 8334152), (10168, 7978426), (12874, 6301432), (19468, 4167076), (20336, 3989213), (25409, 3192752), (25748, 3150716), (38936, 2083538), (50818, 1596376), (51496, 1575358), (77872, 1041769), (101636, 798188), (102992, 787679), (199547, 406544), (203272, 399094)]