81526320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{569}}^1$

素因数の和:787

約数の個数: 120

約数和(自身を含む): 275652000

約数和(自身を除く): 194125680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 199, 240, 360, 398, 569, 597, 720, 796, 995, 1138, 1194, 1592, 1707, 1791, 1990, 2276, 2388, 2845, 2985, 3184, 3414, 3582, 3980, 4552, 4776, 5121, 5690, 5970, 6828, 7164, 7960, 8535, 8955, 9104, 9552, 10242, 11380, 11940, 13656, 14328, 15920, 17070, 17910, 20484, 22760, 23880, 25605, 27312, 28656, 34140, 35820, 40968, 45520, 47760, 51210, 68280, 71640, 81936, 102420, 113231, 136560, 143280, 204840, 226462, 339693, 409680, 452924, 566155, 679386, 905848, 1019079, 1132310, 1358772, 1698465, 1811696, 2038158, 2264620, 2717544, 3396930, 4076316, 4529240, 5095395, 5435088, 6793860, 8152632, 9058480, 10190790, 13587720, 16305264, 20381580, 27175440, 40763160, 81526320]

約数ペア:

[(1, 81526320), (2, 40763160), (3, 27175440), (4, 20381580), (5, 16305264), (6, 13587720), (8, 10190790), (9, 9058480), (10, 8152632), (12, 6793860), (15, 5435088), (16, 5095395), (18, 4529240), (20, 4076316), (24, 3396930), (30, 2717544), (36, 2264620), (40, 2038158), (45, 1811696), (48, 1698465), (60, 1358772), (72, 1132310), (80, 1019079), (90, 905848), (120, 679386), (144, 566155), (180, 452924), (199, 409680), (240, 339693), (360, 226462), (398, 204840), (569, 143280), (597, 136560), (720, 113231), (796, 102420), (995, 81936), (1138, 71640), (1194, 68280), (1592, 51210), (1707, 47760), (1791, 45520), (1990, 40968), (2276, 35820), (2388, 34140), (2845, 28656), (2985, 27312), (3184, 25605), (3414, 23880), (3582, 22760), (3980, 20484), (4552, 17910), (4776, 17070), (5121, 15920), (5690, 14328), (5970, 13656), (6828, 11940), (7164, 11380), (7960, 10242), (8535, 9552), (8955, 9104)]