81431504

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:604

約数の個数: 80

約数和(自身を含む): 198427776

約数和(自身を除く): 116996272

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 157, 176, 308, 314, 421, 616, 628, 842, 1099, 1232, 1256, 1684, 1727, 2198, 2512, 2947, 3368, 3454, 4396, 4631, 5894, 6736, 6908, 8792, 9262, 11788, 12089, 13816, 17584, 18524, 23576, 24178, 27632, 32417, 37048, 47152, 48356, 64834, 66097, 74096, 96712, 129668, 132194, 193424, 259336, 264388, 462679, 518672, 528776, 727067, 925358, 1057552, 1454134, 1850716, 2908268, 3701432, 5089469, 5816536, 7402864, 10178938, 11633072, 20357876, 40715752, 81431504]

約数ペア:

[(1, 81431504), (2, 40715752), (4, 20357876), (7, 11633072), (8, 10178938), (11, 7402864), (14, 5816536), (16, 5089469), (22, 3701432), (28, 2908268), (44, 1850716), (56, 1454134), (77, 1057552), (88, 925358), (112, 727067), (154, 528776), (157, 518672), (176, 462679), (308, 264388), (314, 259336), (421, 193424), (616, 132194), (628, 129668), (842, 96712), (1099, 74096), (1232, 66097), (1256, 64834), (1684, 48356), (1727, 47152), (2198, 37048), (2512, 32417), (2947, 27632), (3368, 24178), (3454, 23576), (4396, 18524), (4631, 17584), (5894, 13816), (6736, 12089), (6908, 11788), (8792, 9262)]