31998340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3931}}^1$

素因数の和:3988

約数の個数: 48

約数和(自身を含む): 75305664

約数和(自身を除く): 43307324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 3931, 4070, 7862, 8140, 15724, 19655, 39310, 43241, 78620, 86482, 145447, 172964, 216205, 290894, 432410, 581788, 727235, 864820, 1454470, 1599917, 2908940, 3199834, 6399668, 7999585, 15999170, 31998340]

約数ペア:

[(1, 31998340), (2, 15999170), (4, 7999585), (5, 6399668), (10, 3199834), (11, 2908940), (20, 1599917), (22, 1454470), (37, 864820), (44, 727235), (55, 581788), (74, 432410), (110, 290894), (148, 216205), (185, 172964), (220, 145447), (370, 86482), (407, 78620), (740, 43241), (814, 39310), (1628, 19655), (2035, 15724), (3931, 8140), (4070, 7862)]