257579868

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1152

約数の個数: 144

約数和(自身を含む): 777928704

約数和(自身を除く): 520348836

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 31, 39, 42, 49, 52, 62, 78, 84, 91, 93, 98, 124, 147, 156, 182, 186, 196, 217, 273, 294, 364, 372, 403, 434, 546, 588, 637, 651, 806, 868, 1087, 1092, 1209, 1274, 1302, 1519, 1612, 1911, 2174, 2418, 2548, 2604, 2821, 3038, 3261, 3822, 4348, 4557, 4836, 5642, 6076, 6522, 7609, 7644, 8463, 9114, 11284, 13044, 14131, 15218, 16926, 18228, 19747, 22827, 28262, 30436, 33697, 33852, 39494, 42393, 45654, 53263, 56524, 59241, 67394, 78988, 84786, 91308, 98917, 101091, 106526, 118482, 134788, 159789, 169572, 197834, 202182, 213052, 235879, 236964, 296751, 319578, 395668, 404364, 438061, 471758, 593502, 639156, 692419, 707637, 876122, 943516, 1187004, 1314183, 1384838, 1415274, 1651153, 1752244, 2077257, 2628366, 2769676, 2830548, 3066427, 3302306, 4154514, 4953459, 5256732, 6132854, 6604612, 8309028, 9199281, 9906918, 12265708, 18398562, 19813836, 21464989, 36797124, 42929978, 64394967, 85859956, 128789934, 257579868]

約数ペア:

[(1, 257579868), (2, 128789934), (3, 85859956), (4, 64394967), (6, 42929978), (7, 36797124), (12, 21464989), (13, 19813836), (14, 18398562), (21, 12265708), (26, 9906918), (28, 9199281), (31, 8309028), (39, 6604612), (42, 6132854), (49, 5256732), (52, 4953459), (62, 4154514), (78, 3302306), (84, 3066427), (91, 2830548), (93, 2769676), (98, 2628366), (124, 2077257), (147, 1752244), (156, 1651153), (182, 1415274), (186, 1384838), (196, 1314183), (217, 1187004), (273, 943516), (294, 876122), (364, 707637), (372, 692419), (403, 639156), (434, 593502), (546, 471758), (588, 438061), (637, 404364), (651, 395668), (806, 319578), (868, 296751), (1087, 236964), (1092, 235879), (1209, 213052), (1274, 202182), (1302, 197834), (1519, 169572), (1612, 159789), (1911, 134788), (2174, 118482), (2418, 106526), (2548, 101091), (2604, 98917), (2821, 91308), (3038, 84786), (3261, 78988), (3822, 67394), (4348, 59241), (4557, 56524), (4836, 53263), (5642, 45654), (6076, 42393), (6522, 39494), (7609, 33852), (7644, 33697), (8463, 30436), (9114, 28262), (11284, 22827), (13044, 19747), (14131, 18228), (15218, 16926)]