128078608

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1080

約数の個数: 80

約数和(自身を含む): 300964864

約数和(自身を除く): 172886256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 37, 56, 62, 74, 112, 124, 148, 217, 248, 259, 296, 434, 496, 518, 592, 868, 997, 1036, 1147, 1736, 1994, 2072, 2294, 3472, 3988, 4144, 4588, 6979, 7976, 8029, 9176, 13958, 15952, 16058, 18352, 27916, 30907, 32116, 36889, 55832, 61814, 64232, 73778, 111664, 123628, 128464, 147556, 216349, 247256, 258223, 295112, 432698, 494512, 516446, 590224, 865396, 1032892, 1143559, 1730792, 2065784, 2287118, 3461584, 4131568, 4574236, 8004913, 9148472, 16009826, 18296944, 32019652, 64039304, 128078608]

約数ペア:

[(1, 128078608), (2, 64039304), (4, 32019652), (7, 18296944), (8, 16009826), (14, 9148472), (16, 8004913), (28, 4574236), (31, 4131568), (37, 3461584), (56, 2287118), (62, 2065784), (74, 1730792), (112, 1143559), (124, 1032892), (148, 865396), (217, 590224), (248, 516446), (259, 494512), (296, 432698), (434, 295112), (496, 258223), (518, 247256), (592, 216349), (868, 147556), (997, 128464), (1036, 123628), (1147, 111664), (1736, 73778), (1994, 64232), (2072, 61814), (2294, 55832), (3472, 36889), (3988, 32116), (4144, 30907), (4588, 27916), (6979, 18352), (7976, 16058), (8029, 15952), (9176, 13958)]