256516568

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:182

約数の個数: 192

約数和(自身を含む): 669772800

約数和(自身を除く): 413256232

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 31, 38, 44, 49, 56, 62, 76, 77, 88, 98, 101, 124, 133, 152, 154, 196, 202, 209, 217, 248, 266, 308, 341, 392, 404, 418, 434, 532, 539, 589, 616, 682, 707, 808, 836, 868, 931, 1064, 1078, 1111, 1178, 1364, 1414, 1463, 1519, 1672, 1736, 1862, 1919, 2156, 2222, 2356, 2387, 2728, 2828, 2926, 3038, 3131, 3724, 3838, 4123, 4312, 4444, 4712, 4774, 4949, 5656, 5852, 6076, 6262, 6479, 7448, 7676, 7777, 8246, 8888, 9548, 9898, 10241, 11704, 12152, 12524, 12958, 13433, 15352, 15554, 16492, 16709, 19096, 19796, 20482, 21109, 21917, 25048, 25916, 26866, 28861, 31108, 32984, 33418, 34441, 39592, 40964, 42218, 43834, 45353, 51832, 53732, 54439, 57722, 59489, 62216, 66836, 68882, 81928, 84436, 87668, 90706, 94031, 107464, 108878, 115444, 118978, 133672, 137764, 147763, 153419, 168872, 175336, 181412, 188062, 217756, 230888, 237956, 241087, 275528, 295526, 306838, 317471, 362824, 376124, 416423, 435512, 475912, 482174, 591052, 613676, 634942, 654379, 752248, 832846, 964348, 1034341, 1182104, 1227352, 1269884, 1308758, 1665692, 1687609, 1928696, 2068682, 2539768, 2617516, 2914961, 3331384, 3375218, 4137364, 4580653, 5235032, 5829922, 6750436, 8274728, 9161306, 11659844, 13500872, 18322612, 23319688, 32064571, 36645224, 64129142, 128258284, 256516568]

約数ペア:

[(1, 256516568), (2, 128258284), (4, 64129142), (7, 36645224), (8, 32064571), (11, 23319688), (14, 18322612), (19, 13500872), (22, 11659844), (28, 9161306), (31, 8274728), (38, 6750436), (44, 5829922), (49, 5235032), (56, 4580653), (62, 4137364), (76, 3375218), (77, 3331384), (88, 2914961), (98, 2617516), (101, 2539768), (124, 2068682), (133, 1928696), (152, 1687609), (154, 1665692), (196, 1308758), (202, 1269884), (209, 1227352), (217, 1182104), (248, 1034341), (266, 964348), (308, 832846), (341, 752248), (392, 654379), (404, 634942), (418, 613676), (434, 591052), (532, 482174), (539, 475912), (589, 435512), (616, 416423), (682, 376124), (707, 362824), (808, 317471), (836, 306838), (868, 295526), (931, 275528), (1064, 241087), (1078, 237956), (1111, 230888), (1178, 217756), (1364, 188062), (1414, 181412), (1463, 175336), (1519, 168872), (1672, 153419), (1736, 147763), (1862, 137764), (1919, 133672), (2156, 118978), (2222, 115444), (2356, 108878), (2387, 107464), (2728, 94031), (2828, 90706), (2926, 87668), (3038, 84436), (3131, 81928), (3724, 68882), (3838, 66836), (4123, 62216), (4312, 59489), (4444, 57722), (4712, 54439), (4774, 53732), (4949, 51832), (5656, 45353), (5852, 43834), (6076, 42218), (6262, 40964), (6479, 39592), (7448, 34441), (7676, 33418), (7777, 32984), (8246, 31108), (8888, 28861), (9548, 26866), (9898, 25916), (10241, 25048), (11704, 21917), (12152, 21109), (12524, 20482), (12958, 19796), (13433, 19096), (15352, 16709), (15554, 16492)]