205079680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^2$

素因数の和:346

約数の個数: 96

約数和(自身を含む): 531365940

約数和(自身を除く): 326286260

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 157, 160, 208, 260, 314, 320, 416, 520, 628, 640, 785, 832, 1040, 1256, 1570, 1664, 2041, 2080, 2512, 3140, 4082, 4160, 5024, 6280, 8164, 8320, 10048, 10205, 12560, 16328, 20096, 20410, 24649, 25120, 32656, 40820, 49298, 50240, 65312, 81640, 98596, 100480, 123245, 130624, 163280, 197192, 246490, 261248, 320437, 326560, 394384, 492980, 640874, 653120, 788768, 985960, 1281748, 1306240, 1577536, 1602185, 1971920, 2563496, 3155072, 3204370, 3943840, 5126992, 6408740, 7887680, 10253984, 12817480, 15775360, 20507968, 25634960, 41015936, 51269920, 102539840, 205079680]

約数ペア:

[(1, 205079680), (2, 102539840), (4, 51269920), (5, 41015936), (8, 25634960), (10, 20507968), (13, 15775360), (16, 12817480), (20, 10253984), (26, 7887680), (32, 6408740), (40, 5126992), (52, 3943840), (64, 3204370), (65, 3155072), (80, 2563496), (104, 1971920), (128, 1602185), (130, 1577536), (157, 1306240), (160, 1281748), (208, 985960), (260, 788768), (314, 653120), (320, 640874), (416, 492980), (520, 394384), (628, 326560), (640, 320437), (785, 261248), (832, 246490), (1040, 197192), (1256, 163280), (1570, 130624), (1664, 123245), (2041, 100480), (2080, 98596), (2512, 81640), (3140, 65312), (4082, 50240), (4160, 49298), (5024, 40820), (6280, 32656), (8164, 25120), (8320, 24649), (10048, 20410), (10205, 20096), (12560, 16328)]