16986640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 43747200

約数和(自身を除く): 26760560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 97, 110, 176, 194, 199, 220, 388, 398, 440, 485, 776, 796, 880, 970, 995, 1067, 1552, 1592, 1940, 1990, 2134, 2189, 3184, 3880, 3980, 4268, 4378, 5335, 7760, 7960, 8536, 8756, 10670, 10945, 15920, 17072, 17512, 19303, 21340, 21890, 35024, 38606, 42680, 43780, 77212, 85360, 87560, 96515, 154424, 175120, 193030, 212333, 308848, 386060, 424666, 772120, 849332, 1061665, 1544240, 1698664, 2123330, 3397328, 4246660, 8493320, 16986640]

約数ペア:

[(1, 16986640), (2, 8493320), (4, 4246660), (5, 3397328), (8, 2123330), (10, 1698664), (11, 1544240), (16, 1061665), (20, 849332), (22, 772120), (40, 424666), (44, 386060), (55, 308848), (80, 212333), (88, 193030), (97, 175120), (110, 154424), (176, 96515), (194, 87560), (199, 85360), (220, 77212), (388, 43780), (398, 42680), (440, 38606), (485, 35024), (776, 21890), (796, 21340), (880, 19303), (970, 17512), (995, 17072), (1067, 15920), (1552, 10945), (1592, 10670), (1940, 8756), (1990, 8536), (2134, 7960), (2189, 7760), (3184, 5335), (3880, 4378), (3980, 4268)]