19915990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2833}}^1$

素因数の和:2896

約数の個数: 32

約数和(自身を含む): 38769120

約数和(自身を除く): 18853130

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 2833, 3515, 5666, 7030, 14165, 28330, 53827, 104821, 107654, 209642, 269135, 524105, 538270, 1048210, 1991599, 3983198, 9957995, 19915990]

約数ペア:

[(1, 19915990), (2, 9957995), (5, 3983198), (10, 1991599), (19, 1048210), (37, 538270), (38, 524105), (74, 269135), (95, 209642), (185, 107654), (190, 104821), (370, 53827), (703, 28330), (1406, 14165), (2833, 7030), (3515, 5666)]