278314888

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 620524800

約数和(自身を除く): 342209912

約数列:

[1, 2, 4, 8, 17, 19, 34, 37, 38, 41, 68, 71, 74, 76, 82, 136, 142, 148, 152, 164, 284, 296, 323, 328, 568, 629, 646, 697, 703, 779, 1207, 1258, 1292, 1349, 1394, 1406, 1517, 1558, 2414, 2516, 2584, 2627, 2698, 2788, 2812, 2911, 3034, 3116, 4828, 5032, 5254, 5396, 5576, 5624, 5822, 6068, 6232, 9656, 10508, 10792, 11644, 11951, 12136, 13243, 21016, 22933, 23288, 23902, 25789, 26486, 28823, 44659, 45866, 47804, 49487, 49913, 51578, 52972, 55309, 57646, 89318, 91732, 95608, 98974, 99826, 103156, 105944, 107707, 110618, 115292, 178636, 183464, 197948, 199652, 206312, 215414, 221236, 230584, 357272, 395896, 399304, 430828, 442472, 489991, 848521, 861656, 940253, 979982, 1697042, 1831019, 1880506, 1959964, 2046433, 3394084, 3662038, 3761012, 3919928, 4092866, 6788168, 7324076, 7522024, 8185732, 14648152, 16371464, 34789361, 69578722, 139157444, 278314888]

約数ペア:

[(1, 278314888), (2, 139157444), (4, 69578722), (8, 34789361), (17, 16371464), (19, 14648152), (34, 8185732), (37, 7522024), (38, 7324076), (41, 6788168), (68, 4092866), (71, 3919928), (74, 3761012), (76, 3662038), (82, 3394084), (136, 2046433), (142, 1959964), (148, 1880506), (152, 1831019), (164, 1697042), (284, 979982), (296, 940253), (323, 861656), (328, 848521), (568, 489991), (629, 442472), (646, 430828), (697, 399304), (703, 395896), (779, 357272), (1207, 230584), (1258, 221236), (1292, 215414), (1349, 206312), (1394, 199652), (1406, 197948), (1517, 183464), (1558, 178636), (2414, 115292), (2516, 110618), (2584, 107707), (2627, 105944), (2698, 103156), (2788, 99826), (2812, 98974), (2911, 95608), (3034, 91732), (3116, 89318), (4828, 57646), (5032, 55309), (5254, 52972), (5396, 51578), (5576, 49913), (5624, 49487), (5822, 47804), (6068, 45866), (6232, 44659), (9656, 28823), (10508, 26486), (10792, 25789), (11644, 23902), (11951, 23288), (12136, 22933), (13243, 21016)]