20161519360

素因数分解:

$2^8\times 5^1\times {\mathrm{1423}}^1\times {\mathrm{11069}}^1$

素因数の和:12513

約数の個数: 72

約数和(自身を含む): 48331442880

約数和(自身を除く): 28169923520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1423, 2846, 5692, 7115, 11069, 11384, 14230, 22138, 22768, 28460, 44276, 45536, 55345, 56920, 88552, 91072, 110690, 113840, 177104, 182144, 221380, 227680, 354208, 364288, 442760, 455360, 708416, 885520, 910720, 1416832, 1771040, 1821440, 2833664, 3542080, 7084160, 14168320, 15751187, 31502374, 63004748, 78755935, 126009496, 157511870, 252018992, 315023740, 504037984, 630047480, 1008075968, 1260094960, 2016151936, 2520189920, 4032303872, 5040379840, 10080759680, 20161519360]

約数ペア:

[(1, 20161519360), (2, 10080759680), (4, 5040379840), (5, 4032303872), (8, 2520189920), (10, 2016151936), (16, 1260094960), (20, 1008075968), (32, 630047480), (40, 504037984), (64, 315023740), (80, 252018992), (128, 157511870), (160, 126009496), (256, 78755935), (320, 63004748), (640, 31502374), (1280, 15751187), (1423, 14168320), (2846, 7084160), (5692, 3542080), (7115, 2833664), (11069, 1821440), (11384, 1771040), (14230, 1416832), (22138, 910720), (22768, 885520), (28460, 708416), (44276, 455360), (45536, 442760), (55345, 364288), (56920, 354208), (88552, 227680), (91072, 221380), (110690, 182144), (113840, 177104)]