639712064

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:400

約数の個数: 112

約数和(自身を含む): 1415491200

約数和(自身を除く): 775779136

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 89, 92, 152, 178, 184, 257, 304, 356, 368, 437, 514, 608, 712, 736, 874, 1028, 1216, 1424, 1472, 1691, 1748, 2047, 2056, 2848, 3382, 3496, 4094, 4112, 4883, 5696, 5911, 6764, 6992, 8188, 8224, 9766, 11822, 13528, 13984, 16376, 16448, 19532, 22873, 23644, 27056, 27968, 32752, 38893, 39064, 45746, 47288, 54112, 65504, 77786, 78128, 91492, 94576, 108224, 112309, 131008, 155572, 156256, 182984, 189152, 224618, 311144, 312512, 365968, 378304, 434587, 449236, 526079, 622288, 731936, 869174, 898472, 1052158, 1244576, 1463872, 1738348, 1796944, 2104316, 2489152, 3476696, 3593888, 4208632, 6953392, 7187776, 8417264, 9995501, 13906784, 16834528, 19991002, 27813568, 33669056, 39982004, 79964008, 159928016, 319856032, 639712064]

約数ペア:

[(1, 639712064), (2, 319856032), (4, 159928016), (8, 79964008), (16, 39982004), (19, 33669056), (23, 27813568), (32, 19991002), (38, 16834528), (46, 13906784), (64, 9995501), (76, 8417264), (89, 7187776), (92, 6953392), (152, 4208632), (178, 3593888), (184, 3476696), (257, 2489152), (304, 2104316), (356, 1796944), (368, 1738348), (437, 1463872), (514, 1244576), (608, 1052158), (712, 898472), (736, 869174), (874, 731936), (1028, 622288), (1216, 526079), (1424, 449236), (1472, 434587), (1691, 378304), (1748, 365968), (2047, 312512), (2056, 311144), (2848, 224618), (3382, 189152), (3496, 182984), (4094, 156256), (4112, 155572), (4883, 131008), (5696, 112309), (5911, 108224), (6764, 94576), (6992, 91492), (8188, 78128), (8224, 77786), (9766, 65504), (11822, 54112), (13528, 47288), (13984, 45746), (16376, 39064), (16448, 38893), (19532, 32752), (22873, 27968), (23644, 27056)]