81543680

素因数分解:

$2^9\times 5^1\times {\mathrm{53}}^1\times {\mathrm{601}}^1$

素因数の和:677

約数の個数: 80

約数和(自身を含む): 199534104

約数和(自身を除く): 117990424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 512, 530, 601, 640, 848, 1060, 1202, 1280, 1696, 2120, 2404, 2560, 3005, 3392, 4240, 4808, 6010, 6784, 8480, 9616, 12020, 13568, 16960, 19232, 24040, 27136, 31853, 33920, 38464, 48080, 63706, 67840, 76928, 96160, 127412, 135680, 153856, 159265, 192320, 254824, 307712, 318530, 384640, 509648, 637060, 769280, 1019296, 1274120, 1538560, 2038592, 2548240, 4077184, 5096480, 8154368, 10192960, 16308736, 20385920, 40771840, 81543680]

約数ペア:

[(1, 81543680), (2, 40771840), (4, 20385920), (5, 16308736), (8, 10192960), (10, 8154368), (16, 5096480), (20, 4077184), (32, 2548240), (40, 2038592), (53, 1538560), (64, 1274120), (80, 1019296), (106, 769280), (128, 637060), (160, 509648), (212, 384640), (256, 318530), (265, 307712), (320, 254824), (424, 192320), (512, 159265), (530, 153856), (601, 135680), (640, 127412), (848, 96160), (1060, 76928), (1202, 67840), (1280, 63706), (1696, 48080), (2120, 38464), (2404, 33920), (2560, 31853), (3005, 27136), (3392, 24040), (4240, 19232), (4808, 16960), (6010, 13568), (6784, 12020), (8480, 9616)]