81277280

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{1481}}^1$

素因数の和:1517

約数の個数: 96

約数和(自身を含む): 224078400

約数和(自身を除く): 142801120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1481, 1568, 1715, 1960, 2744, 2962, 3430, 3920, 5488, 5924, 6860, 7405, 7840, 10367, 10976, 11848, 13720, 14810, 20734, 23696, 27440, 29620, 41468, 47392, 51835, 54880, 59240, 72569, 82936, 103670, 118480, 145138, 165872, 207340, 236960, 290276, 331744, 362845, 414680, 507983, 580552, 725690, 829360, 1015966, 1161104, 1451380, 1658720, 2031932, 2322208, 2539915, 2902760, 4063864, 5079830, 5805520, 8127728, 10159660, 11611040, 16255456, 20319320, 40638640, 81277280]

約数ペア:

[(1, 81277280), (2, 40638640), (4, 20319320), (5, 16255456), (7, 11611040), (8, 10159660), (10, 8127728), (14, 5805520), (16, 5079830), (20, 4063864), (28, 2902760), (32, 2539915), (35, 2322208), (40, 2031932), (49, 1658720), (56, 1451380), (70, 1161104), (80, 1015966), (98, 829360), (112, 725690), (140, 580552), (160, 507983), (196, 414680), (224, 362845), (245, 331744), (280, 290276), (343, 236960), (392, 207340), (490, 165872), (560, 145138), (686, 118480), (784, 103670), (980, 82936), (1120, 72569), (1372, 59240), (1481, 54880), (1568, 51835), (1715, 47392), (1960, 41468), (2744, 29620), (2962, 27440), (3430, 23696), (3920, 20734), (5488, 14810), (5924, 13720), (6860, 11848), (7405, 10976), (7840, 10367)]