80687360

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{373}}^1$

素因数の和:420

約数の個数: 108

約数和(自身を含む): 209843172

約数和(自身を除く): 129155812

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, 373, 416, 520, 640, 676, 746, 832, 845, 1040, 1280, 1352, 1492, 1664, 1690, 1865, 2080, 2704, 2984, 3328, 3380, 3730, 4160, 4849, 5408, 5968, 6760, 7460, 8320, 9698, 10816, 11936, 13520, 14920, 16640, 19396, 21632, 23872, 24245, 27040, 29840, 38792, 43264, 47744, 48490, 54080, 59680, 63037, 77584, 95488, 96980, 108160, 119360, 126074, 155168, 193960, 216320, 238720, 252148, 310336, 315185, 387920, 477440, 504296, 620672, 630370, 775840, 1008592, 1241344, 1260740, 1551680, 2017184, 2521480, 3103360, 4034368, 5042960, 6206720, 8068736, 10085920, 16137472, 20171840, 40343680, 80687360]

約数ペア:

[(1, 80687360), (2, 40343680), (4, 20171840), (5, 16137472), (8, 10085920), (10, 8068736), (13, 6206720), (16, 5042960), (20, 4034368), (26, 3103360), (32, 2521480), (40, 2017184), (52, 1551680), (64, 1260740), (65, 1241344), (80, 1008592), (104, 775840), (128, 630370), (130, 620672), (160, 504296), (169, 477440), (208, 387920), (256, 315185), (260, 310336), (320, 252148), (338, 238720), (373, 216320), (416, 193960), (520, 155168), (640, 126074), (676, 119360), (746, 108160), (832, 96980), (845, 95488), (1040, 77584), (1280, 63037), (1352, 59680), (1492, 54080), (1664, 48490), (1690, 47744), (1865, 43264), (2080, 38792), (2704, 29840), (2984, 27040), (3328, 24245), (3380, 23872), (3730, 21632), (4160, 19396), (4849, 16640), (5408, 14920), (5968, 13520), (6760, 11936), (7460, 10816), (8320, 9698)]