279852748

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 619315200

約数和(自身を除く): 339462452

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 71, 76, 124, 133, 142, 217, 239, 266, 284, 434, 478, 497, 532, 589, 868, 956, 994, 1178, 1349, 1673, 1988, 2201, 2356, 2698, 3346, 4123, 4402, 4541, 5396, 6692, 7409, 8246, 8804, 9082, 9443, 14818, 15407, 16492, 16969, 18164, 18886, 29636, 30814, 31787, 33938, 37772, 41819, 51863, 61628, 63574, 67876, 83638, 103726, 118783, 127148, 140771, 167276, 207452, 237566, 281542, 292733, 322411, 475132, 526039, 563084, 585466, 644822, 985397, 1052078, 1170932, 1289644, 1970794, 2104156, 2256877, 3682273, 3941588, 4513754, 7364546, 9027508, 9994741, 14729092, 19989482, 39978964, 69963187, 139926374, 279852748]

約数ペア:

[(1, 279852748), (2, 139926374), (4, 69963187), (7, 39978964), (14, 19989482), (19, 14729092), (28, 9994741), (31, 9027508), (38, 7364546), (62, 4513754), (71, 3941588), (76, 3682273), (124, 2256877), (133, 2104156), (142, 1970794), (217, 1289644), (239, 1170932), (266, 1052078), (284, 985397), (434, 644822), (478, 585466), (497, 563084), (532, 526039), (589, 475132), (868, 322411), (956, 292733), (994, 281542), (1178, 237566), (1349, 207452), (1673, 167276), (1988, 140771), (2201, 127148), (2356, 118783), (2698, 103726), (3346, 83638), (4123, 67876), (4402, 63574), (4541, 61628), (5396, 51863), (6692, 41819), (7409, 37772), (8246, 33938), (8804, 31787), (9082, 30814), (9443, 29636), (14818, 18886), (15407, 18164), (16492, 16969)]