71810480

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2617}}^1$

素因数の和:2651

約数の個数: 80

約数和(自身を含む): 194779200

約数和(自身を除く): 122968720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2617, 2744, 3430, 3920, 5234, 5488, 6860, 10468, 13085, 13720, 18319, 20936, 26170, 27440, 36638, 41872, 52340, 73276, 91595, 104680, 128233, 146552, 183190, 209360, 256466, 293104, 366380, 512932, 641165, 732760, 897631, 1025864, 1282330, 1465520, 1795262, 2051728, 2564660, 3590524, 4488155, 5129320, 7181048, 8976310, 10258640, 14362096, 17952620, 35905240, 71810480]

約数ペア:

[(1, 71810480), (2, 35905240), (4, 17952620), (5, 14362096), (7, 10258640), (8, 8976310), (10, 7181048), (14, 5129320), (16, 4488155), (20, 3590524), (28, 2564660), (35, 2051728), (40, 1795262), (49, 1465520), (56, 1282330), (70, 1025864), (80, 897631), (98, 732760), (112, 641165), (140, 512932), (196, 366380), (245, 293104), (280, 256466), (343, 209360), (392, 183190), (490, 146552), (560, 128233), (686, 104680), (784, 91595), (980, 73276), (1372, 52340), (1715, 41872), (1960, 36638), (2617, 27440), (2744, 26170), (3430, 20936), (3920, 18319), (5234, 13720), (5488, 13085), (6860, 10468)]