247503256

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1065

約数の個数: 128

約数和(自身を含む): 643829760

約数和(自身を除く): 396326504

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 31, 44, 52, 56, 62, 77, 88, 91, 104, 124, 143, 154, 182, 217, 248, 286, 308, 341, 364, 403, 434, 572, 616, 682, 728, 806, 868, 997, 1001, 1144, 1364, 1612, 1736, 1994, 2002, 2387, 2728, 2821, 3224, 3988, 4004, 4433, 4774, 5642, 6979, 7976, 8008, 8866, 9548, 10967, 11284, 12961, 13958, 17732, 19096, 21934, 22568, 25922, 27916, 30907, 31031, 35464, 43868, 51844, 55832, 61814, 62062, 76769, 87736, 90727, 103688, 123628, 124124, 142571, 153538, 181454, 216349, 247256, 248248, 285142, 307076, 339977, 362908, 401791, 432698, 570284, 614152, 679954, 725816, 803582, 865396, 997997, 1140568, 1359908, 1607164, 1730792, 1995994, 2379839, 2719816, 2812537, 3214328, 3991988, 4419701, 4759678, 5625074, 7983976, 8839402, 9519356, 11250148, 17678804, 19038712, 22500296, 30937907, 35357608, 61875814, 123751628, 247503256]

約数ペア:

[(1, 247503256), (2, 123751628), (4, 61875814), (7, 35357608), (8, 30937907), (11, 22500296), (13, 19038712), (14, 17678804), (22, 11250148), (26, 9519356), (28, 8839402), (31, 7983976), (44, 5625074), (52, 4759678), (56, 4419701), (62, 3991988), (77, 3214328), (88, 2812537), (91, 2719816), (104, 2379839), (124, 1995994), (143, 1730792), (154, 1607164), (182, 1359908), (217, 1140568), (248, 997997), (286, 865396), (308, 803582), (341, 725816), (364, 679954), (403, 614152), (434, 570284), (572, 432698), (616, 401791), (682, 362908), (728, 339977), (806, 307076), (868, 285142), (997, 248248), (1001, 247256), (1144, 216349), (1364, 181454), (1612, 153538), (1736, 142571), (1994, 124124), (2002, 123628), (2387, 103688), (2728, 90727), (2821, 87736), (3224, 76769), (3988, 62062), (4004, 61814), (4433, 55832), (4774, 51844), (5642, 43868), (6979, 35464), (7976, 31031), (8008, 30907), (8866, 27916), (9548, 25922), (10967, 22568), (11284, 21934), (12961, 19096), (13958, 17732)]