19329640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 28570520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 223, 394, 440, 446, 788, 892, 985, 1115, 1576, 1784, 1970, 2167, 2230, 2453, 3940, 4334, 4460, 4906, 7880, 8668, 8920, 9812, 10835, 12265, 17336, 19624, 21670, 24530, 43340, 43931, 49060, 86680, 87862, 98120, 175724, 219655, 351448, 439310, 483241, 878620, 966482, 1757240, 1932964, 2416205, 3865928, 4832410, 9664820, 19329640]

約数ペア:

[(1, 19329640), (2, 9664820), (4, 4832410), (5, 3865928), (8, 2416205), (10, 1932964), (11, 1757240), (20, 966482), (22, 878620), (40, 483241), (44, 439310), (55, 351448), (88, 219655), (110, 175724), (197, 98120), (220, 87862), (223, 86680), (394, 49060), (440, 43931), (446, 43340), (788, 24530), (892, 21670), (985, 19624), (1115, 17336), (1576, 12265), (1784, 10835), (1970, 9812), (2167, 8920), (2230, 8668), (2453, 7880), (3940, 4906), (4334, 4460)]