30909940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 67813200

約数和(自身を除く): 36903260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 137, 145, 274, 290, 389, 548, 580, 685, 778, 1370, 1556, 1945, 2740, 3890, 3973, 7780, 7946, 11281, 15892, 19865, 22562, 39730, 45124, 53293, 56405, 79460, 106586, 112810, 213172, 225620, 266465, 532930, 1065860, 1545497, 3090994, 6181988, 7727485, 15454970, 30909940]

約数ペア:

[(1, 30909940), (2, 15454970), (4, 7727485), (5, 6181988), (10, 3090994), (20, 1545497), (29, 1065860), (58, 532930), (116, 266465), (137, 225620), (145, 213172), (274, 112810), (290, 106586), (389, 79460), (548, 56405), (580, 53293), (685, 45124), (778, 39730), (1370, 22562), (1556, 19865), (1945, 15892), (2740, 11281), (3890, 7946), (3973, 7780)]