81035550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 232282752

約数和(自身を除く): 151247202

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 31, 37, 45, 50, 62, 74, 75, 90, 93, 111, 150, 155, 157, 185, 186, 222, 225, 279, 310, 314, 333, 370, 450, 465, 471, 555, 558, 666, 775, 785, 925, 930, 942, 1110, 1147, 1395, 1413, 1550, 1570, 1665, 1850, 2294, 2325, 2355, 2775, 2790, 2826, 3330, 3441, 3925, 4650, 4710, 4867, 5550, 5735, 5809, 6882, 6975, 7065, 7850, 8325, 9734, 10323, 11470, 11618, 11775, 13950, 14130, 14601, 16650, 17205, 17427, 20646, 23550, 24335, 28675, 29045, 29202, 34410, 34854, 35325, 43803, 48670, 51615, 52281, 57350, 58090, 70650, 73005, 86025, 87135, 87606, 103230, 104562, 121675, 145225, 146010, 172050, 174270, 180079, 219015, 243350, 258075, 261405, 290450, 360158, 365025, 435675, 438030, 516150, 522810, 540237, 730050, 871350, 900395, 1080474, 1095075, 1307025, 1620711, 1800790, 2190150, 2614050, 2701185, 3241422, 4501975, 5402370, 8103555, 9003950, 13505925, 16207110, 27011850, 40517775, 81035550]

約数ペア:

[(1, 81035550), (2, 40517775), (3, 27011850), (5, 16207110), (6, 13505925), (9, 9003950), (10, 8103555), (15, 5402370), (18, 4501975), (25, 3241422), (30, 2701185), (31, 2614050), (37, 2190150), (45, 1800790), (50, 1620711), (62, 1307025), (74, 1095075), (75, 1080474), (90, 900395), (93, 871350), (111, 730050), (150, 540237), (155, 522810), (157, 516150), (185, 438030), (186, 435675), (222, 365025), (225, 360158), (279, 290450), (310, 261405), (314, 258075), (333, 243350), (370, 219015), (450, 180079), (465, 174270), (471, 172050), (555, 146010), (558, 145225), (666, 121675), (775, 104562), (785, 103230), (925, 87606), (930, 87135), (942, 86025), (1110, 73005), (1147, 70650), (1395, 58090), (1413, 57350), (1550, 52281), (1570, 51615), (1665, 48670), (1850, 43803), (2294, 35325), (2325, 34854), (2355, 34410), (2775, 29202), (2790, 29045), (2826, 28675), (3330, 24335), (3441, 23550), (3925, 20646), (4650, 17427), (4710, 17205), (4867, 16650), (5550, 14601), (5735, 14130), (5809, 13950), (6882, 11775), (6975, 11618), (7065, 11470), (7850, 10323), (8325, 9734)]