199336448

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:729

約数の個数: 80

約数和(自身を含む): 433424640

約数和(自身を除く): 234088192

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 256, 304, 496, 512, 589, 608, 661, 992, 1178, 1216, 1322, 1984, 2356, 2432, 2644, 3968, 4712, 4864, 5288, 7936, 9424, 9728, 10576, 12559, 15872, 18848, 20491, 21152, 25118, 37696, 40982, 42304, 50236, 75392, 81964, 84608, 100472, 150784, 163928, 169216, 200944, 301568, 327856, 338432, 389329, 401888, 655712, 778658, 803776, 1311424, 1557316, 1607552, 2622848, 3114632, 3215104, 5245696, 6229264, 6430208, 10491392, 12458528, 24917056, 49834112, 99668224, 199336448]

約数ペア:

[(1, 199336448), (2, 99668224), (4, 49834112), (8, 24917056), (16, 12458528), (19, 10491392), (31, 6430208), (32, 6229264), (38, 5245696), (62, 3215104), (64, 3114632), (76, 2622848), (124, 1607552), (128, 1557316), (152, 1311424), (248, 803776), (256, 778658), (304, 655712), (496, 401888), (512, 389329), (589, 338432), (608, 327856), (661, 301568), (992, 200944), (1178, 169216), (1216, 163928), (1322, 150784), (1984, 100472), (2356, 84608), (2432, 81964), (2644, 75392), (3968, 50236), (4712, 42304), (4864, 40982), (5288, 37696), (7936, 25118), (9424, 21152), (9728, 20491), (10576, 18848), (12559, 15872)]