20990136

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{241}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 55756800

約数和(自身を除く): 34766664

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 191, 228, 241, 382, 456, 482, 573, 723, 764, 964, 1146, 1446, 1528, 1928, 2292, 2892, 3629, 4579, 4584, 5784, 7258, 9158, 10887, 13737, 14516, 18316, 21774, 27474, 29032, 36632, 43548, 46031, 54948, 87096, 92062, 109896, 138093, 184124, 276186, 368248, 552372, 874589, 1104744, 1749178, 2623767, 3498356, 5247534, 6996712, 10495068, 20990136]

約数ペア:

[(1, 20990136), (2, 10495068), (3, 6996712), (4, 5247534), (6, 3498356), (8, 2623767), (12, 1749178), (19, 1104744), (24, 874589), (38, 552372), (57, 368248), (76, 276186), (114, 184124), (152, 138093), (191, 109896), (228, 92062), (241, 87096), (382, 54948), (456, 46031), (482, 43548), (573, 36632), (723, 29032), (764, 27474), (964, 21774), (1146, 18316), (1446, 14516), (1528, 13737), (1928, 10887), (2292, 9158), (2892, 7258), (3629, 5784), (4579, 4584)]