12905864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 25660800

約数和(自身を除く): 12754936

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 431, 788, 862, 1576, 1724, 3448, 3743, 7486, 8189, 14972, 16378, 29944, 32756, 65512, 84907, 169814, 339628, 679256, 1613233, 3226466, 6452932, 12905864]

約数ペア:

[(1, 12905864), (2, 6452932), (4, 3226466), (8, 1613233), (19, 679256), (38, 339628), (76, 169814), (152, 84907), (197, 65512), (394, 32756), (431, 29944), (788, 16378), (862, 14972), (1576, 8189), (1724, 7486), (3448, 3743)]