81771120

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{12619}}^1$

素因数の和:12644

約数の個数: 100

約数和(自身を含む): 284025720

約数和(自身を除く): 202254600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 12619, 25238, 37857, 50476, 63095, 75714, 100952, 113571, 126190, 151428, 189285, 201904, 227142, 252380, 302856, 340713, 378570, 454284, 504760, 567855, 605712, 681426, 757140, 908568, 1009520, 1022139, 1135710, 1362852, 1514280, 1703565, 1817136, 2044278, 2271420, 2725704, 3028560, 3407130, 4088556, 4542840, 5110695, 5451408, 6814260, 8177112, 9085680, 10221390, 13628520, 16354224, 20442780, 27257040, 40885560, 81771120]

約数ペア:

[(1, 81771120), (2, 40885560), (3, 27257040), (4, 20442780), (5, 16354224), (6, 13628520), (8, 10221390), (9, 9085680), (10, 8177112), (12, 6814260), (15, 5451408), (16, 5110695), (18, 4542840), (20, 4088556), (24, 3407130), (27, 3028560), (30, 2725704), (36, 2271420), (40, 2044278), (45, 1817136), (48, 1703565), (54, 1514280), (60, 1362852), (72, 1135710), (80, 1022139), (81, 1009520), (90, 908568), (108, 757140), (120, 681426), (135, 605712), (144, 567855), (162, 504760), (180, 454284), (216, 378570), (240, 340713), (270, 302856), (324, 252380), (360, 227142), (405, 201904), (432, 189285), (540, 151428), (648, 126190), (720, 113571), (810, 100952), (1080, 75714), (1296, 63095), (1620, 50476), (2160, 37857), (3240, 25238), (6480, 12619)]