2780511272

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 216

約数和(自身を含む): 7000977690

約数和(自身を除く): 4220466418

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 49, 56, 61, 62, 77, 88, 98, 121, 122, 124, 154, 196, 217, 242, 244, 248, 308, 341, 392, 427, 434, 484, 488, 539, 616, 671, 682, 847, 854, 868, 961, 968, 1078, 1342, 1364, 1519, 1694, 1708, 1736, 1891, 1922, 2156, 2387, 2684, 2728, 2989, 3038, 3388, 3416, 3751, 3782, 3844, 4312, 4697, 4774, 5368, 5929, 5978, 6076, 6727, 6776, 7381, 7502, 7564, 7688, 9394, 9548, 10571, 11858, 11956, 12152, 13237, 13454, 14762, 15004, 15128, 16709, 18788, 19096, 20801, 21142, 23716, 23912, 26257, 26474, 26908, 29524, 30008, 32879, 33418, 37576, 41602, 42284, 47089, 47432, 51667, 52514, 52948, 53816, 58621, 59048, 65758, 66836, 73997, 83204, 84568, 92659, 94178, 103334, 105028, 105896, 116281, 117242, 131516, 133672, 145607, 147994, 166408, 183799, 185318, 188356, 206668, 210056, 228811, 232562, 234484, 263032, 291214, 295988, 361669, 367598, 370636, 376712, 410347, 413336, 457622, 465124, 468968, 517979, 582428, 591976, 644831, 723338, 735196, 741272, 813967, 820694, 915244, 930248, 1019249, 1035958, 1164856, 1289662, 1446676, 1470392, 1601677, 1627934, 1641388, 1830488, 2038498, 2071916, 2579324, 2872429, 2893352, 3203354, 3255868, 3282776, 4076996, 4143832, 4513817, 5158648, 5697769, 5744858, 6406708, 6511736, 7093141, 8153992, 9027634, 11211739, 11395538, 11489716, 12813416, 14186282, 18055268, 22423478, 22791076, 22979432, 28372564, 31596719, 36110536, 44846956, 45582152, 49651987, 56745128, 63193438, 89693912, 99303974, 126386876, 198607948, 252773752, 347563909, 397215896, 695127818, 1390255636, 2780511272]

約数ペア:

[(1, 2780511272), (2, 1390255636), (4, 695127818), (7, 397215896), (8, 347563909), (11, 252773752), (14, 198607948), (22, 126386876), (28, 99303974), (31, 89693912), (44, 63193438), (49, 56745128), (56, 49651987), (61, 45582152), (62, 44846956), (77, 36110536), (88, 31596719), (98, 28372564), (121, 22979432), (122, 22791076), (124, 22423478), (154, 18055268), (196, 14186282), (217, 12813416), (242, 11489716), (244, 11395538), (248, 11211739), (308, 9027634), (341, 8153992), (392, 7093141), (427, 6511736), (434, 6406708), (484, 5744858), (488, 5697769), (539, 5158648), (616, 4513817), (671, 4143832), (682, 4076996), (847, 3282776), (854, 3255868), (868, 3203354), (961, 2893352), (968, 2872429), (1078, 2579324), (1342, 2071916), (1364, 2038498), (1519, 1830488), (1694, 1641388), (1708, 1627934), (1736, 1601677), (1891, 1470392), (1922, 1446676), (2156, 1289662), (2387, 1164856), (2684, 1035958), (2728, 1019249), (2989, 930248), (3038, 915244), (3388, 820694), (3416, 813967), (3751, 741272), (3782, 735196), (3844, 723338), (4312, 644831), (4697, 591976), (4774, 582428), (5368, 517979), (5929, 468968), (5978, 465124), (6076, 457622), (6727, 413336), (6776, 410347), (7381, 376712), (7502, 370636), (7564, 367598), (7688, 361669), (9394, 295988), (9548, 291214), (10571, 263032), (11858, 234484), (11956, 232562), (12152, 228811), (13237, 210056), (13454, 206668), (14762, 188356), (15004, 185318), (15128, 183799), (16709, 166408), (18788, 147994), (19096, 145607), (20801, 133672), (21142, 131516), (23716, 117242), (23912, 116281), (26257, 105896), (26474, 105028), (26908, 103334), (29524, 94178), (30008, 92659), (32879, 84568), (33418, 83204), (37576, 73997), (41602, 66836), (42284, 65758), (47089, 59048), (47432, 58621), (51667, 53816), (52514, 52948)]