259805240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:309

約数の個数: 128

約数和(自身を含む): 653184000

約数和(自身を除く): 393378760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 89, 92, 95, 115, 152, 167, 178, 184, 190, 230, 334, 356, 380, 437, 445, 460, 668, 712, 760, 835, 874, 890, 920, 1336, 1670, 1691, 1748, 1780, 2047, 2185, 3173, 3340, 3382, 3496, 3560, 3841, 4094, 4370, 6346, 6680, 6764, 7682, 8188, 8455, 8740, 10235, 12692, 13528, 14863, 15364, 15865, 16376, 16910, 17480, 19205, 20470, 25384, 29726, 30728, 31730, 33820, 38410, 38893, 40940, 59452, 63460, 67640, 72979, 74315, 76820, 77786, 81880, 118904, 126920, 145958, 148630, 153640, 155572, 194465, 282397, 291916, 297260, 311144, 341849, 364895, 388930, 564794, 583832, 594520, 683698, 729790, 777860, 1129588, 1367396, 1411985, 1459580, 1555720, 1709245, 2259176, 2734792, 2823970, 2919160, 3418490, 5647940, 6495131, 6836980, 11295880, 12990262, 13673960, 25980524, 32475655, 51961048, 64951310, 129902620, 259805240]

約数ペア:

[(1, 259805240), (2, 129902620), (4, 64951310), (5, 51961048), (8, 32475655), (10, 25980524), (19, 13673960), (20, 12990262), (23, 11295880), (38, 6836980), (40, 6495131), (46, 5647940), (76, 3418490), (89, 2919160), (92, 2823970), (95, 2734792), (115, 2259176), (152, 1709245), (167, 1555720), (178, 1459580), (184, 1411985), (190, 1367396), (230, 1129588), (334, 777860), (356, 729790), (380, 683698), (437, 594520), (445, 583832), (460, 564794), (668, 388930), (712, 364895), (760, 341849), (835, 311144), (874, 297260), (890, 291916), (920, 282397), (1336, 194465), (1670, 155572), (1691, 153640), (1748, 148630), (1780, 145958), (2047, 126920), (2185, 118904), (3173, 81880), (3340, 77786), (3382, 76820), (3496, 74315), (3560, 72979), (3841, 67640), (4094, 63460), (4370, 59452), (6346, 40940), (6680, 38893), (6764, 38410), (7682, 33820), (8188, 31730), (8455, 30728), (8740, 29726), (10235, 25384), (12692, 20470), (13528, 19205), (14863, 17480), (15364, 16910), (15865, 16376)]