19793480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{317}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 51287040

約数和(自身を除く): 31493560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 223, 280, 317, 446, 634, 892, 1115, 1268, 1561, 1585, 1784, 2219, 2230, 2536, 3122, 3170, 4438, 4460, 6244, 6340, 7805, 8876, 8920, 11095, 12488, 12680, 15610, 17752, 22190, 31220, 44380, 62440, 70691, 88760, 141382, 282764, 353455, 494837, 565528, 706910, 989674, 1413820, 1979348, 2474185, 2827640, 3958696, 4948370, 9896740, 19793480]

約数ペア:

[(1, 19793480), (2, 9896740), (4, 4948370), (5, 3958696), (7, 2827640), (8, 2474185), (10, 1979348), (14, 1413820), (20, 989674), (28, 706910), (35, 565528), (40, 494837), (56, 353455), (70, 282764), (140, 141382), (223, 88760), (280, 70691), (317, 62440), (446, 44380), (634, 31220), (892, 22190), (1115, 17752), (1268, 15610), (1561, 12680), (1585, 12488), (1784, 11095), (2219, 8920), (2230, 8876), (2536, 7805), (3122, 6340), (3170, 6244), (4438, 4460)]