128277760

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{593}}^1$

素因数の和:640

約数の個数: 108

約数和(自身を含む): 333280332

約数和(自身を除く): 205002572

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 520, 593, 640, 676, 832, 845, 1040, 1186, 1280, 1352, 1664, 1690, 2080, 2372, 2704, 2965, 3328, 3380, 4160, 4744, 5408, 5930, 6760, 7709, 8320, 9488, 10816, 11860, 13520, 15418, 16640, 18976, 21632, 23720, 27040, 30836, 37952, 38545, 43264, 47440, 54080, 61672, 75904, 77090, 94880, 100217, 108160, 123344, 151808, 154180, 189760, 200434, 216320, 246688, 308360, 379520, 400868, 493376, 501085, 616720, 759040, 801736, 986752, 1002170, 1233440, 1603472, 1973504, 2004340, 2466880, 3206944, 4008680, 4933760, 6413888, 8017360, 9867520, 12827776, 16034720, 25655552, 32069440, 64138880, 128277760]

約数ペア:

[(1, 128277760), (2, 64138880), (4, 32069440), (5, 25655552), (8, 16034720), (10, 12827776), (13, 9867520), (16, 8017360), (20, 6413888), (26, 4933760), (32, 4008680), (40, 3206944), (52, 2466880), (64, 2004340), (65, 1973504), (80, 1603472), (104, 1233440), (128, 1002170), (130, 986752), (160, 801736), (169, 759040), (208, 616720), (256, 501085), (260, 493376), (320, 400868), (338, 379520), (416, 308360), (520, 246688), (593, 216320), (640, 200434), (676, 189760), (832, 154180), (845, 151808), (1040, 123344), (1186, 108160), (1280, 100217), (1352, 94880), (1664, 77090), (1690, 75904), (2080, 61672), (2372, 54080), (2704, 47440), (2965, 43264), (3328, 38545), (3380, 37952), (4160, 30836), (4744, 27040), (5408, 23720), (5930, 21632), (6760, 18976), (7709, 16640), (8320, 15418), (9488, 13520), (10816, 11860)]