19777320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1$

素因数の和:555

約数の個数: 96

約数和(自身を含む): 64906920

約数和(自身を除く): 45129600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 137, 180, 274, 360, 401, 411, 548, 685, 802, 822, 1096, 1203, 1233, 1370, 1604, 1644, 2005, 2055, 2406, 2466, 2740, 3208, 3288, 3609, 4010, 4110, 4812, 4932, 5480, 6015, 6165, 7218, 8020, 8220, 9624, 9864, 12030, 12330, 14436, 16040, 16440, 18045, 24060, 24660, 28872, 36090, 48120, 49320, 54937, 72180, 109874, 144360, 164811, 219748, 274685, 329622, 439496, 494433, 549370, 659244, 824055, 988866, 1098740, 1318488, 1648110, 1977732, 2197480, 2472165, 3296220, 3955464, 4944330, 6592440, 9888660, 19777320]

約数ペア:

[(1, 19777320), (2, 9888660), (3, 6592440), (4, 4944330), (5, 3955464), (6, 3296220), (8, 2472165), (9, 2197480), (10, 1977732), (12, 1648110), (15, 1318488), (18, 1098740), (20, 988866), (24, 824055), (30, 659244), (36, 549370), (40, 494433), (45, 439496), (60, 329622), (72, 274685), (90, 219748), (120, 164811), (137, 144360), (180, 109874), (274, 72180), (360, 54937), (401, 49320), (411, 48120), (548, 36090), (685, 28872), (802, 24660), (822, 24060), (1096, 18045), (1203, 16440), (1233, 16040), (1370, 14436), (1604, 12330), (1644, 12030), (2005, 9864), (2055, 9624), (2406, 8220), (2466, 8020), (2740, 7218), (3208, 6165), (3288, 6015), (3609, 5480), (4010, 4932), (4110, 4812)]