19915170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2081}}^1$

素因数の和:2131

約数の個数: 64

約数和(自身を含む): 53965440

約数和(自身を除く): 34050270

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 33, 55, 58, 66, 87, 110, 145, 165, 174, 290, 319, 330, 435, 638, 870, 957, 1595, 1914, 2081, 3190, 4162, 4785, 6243, 9570, 10405, 12486, 20810, 22891, 31215, 45782, 60349, 62430, 68673, 114455, 120698, 137346, 181047, 228910, 301745, 343365, 362094, 603490, 663839, 686730, 905235, 1327678, 1810470, 1991517, 3319195, 3983034, 6638390, 9957585, 19915170]

約数ペア:

[(1, 19915170), (2, 9957585), (3, 6638390), (5, 3983034), (6, 3319195), (10, 1991517), (11, 1810470), (15, 1327678), (22, 905235), (29, 686730), (30, 663839), (33, 603490), (55, 362094), (58, 343365), (66, 301745), (87, 228910), (110, 181047), (145, 137346), (165, 120698), (174, 114455), (290, 68673), (319, 62430), (330, 60349), (435, 45782), (638, 31215), (870, 22891), (957, 20810), (1595, 12486), (1914, 10405), (2081, 9570), (3190, 6243), (4162, 4785)]