25811728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:655

約数の個数: 40

約数和(自身を含む): 53032320

約数和(自身を除く): 27220592

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 304, 394, 431, 788, 862, 1576, 1724, 3152, 3448, 3743, 6896, 7486, 8189, 14972, 16378, 29944, 32756, 59888, 65512, 84907, 131024, 169814, 339628, 679256, 1358512, 1613233, 3226466, 6452932, 12905864, 25811728]

約数ペア:

[(1, 25811728), (2, 12905864), (4, 6452932), (8, 3226466), (16, 1613233), (19, 1358512), (38, 679256), (76, 339628), (152, 169814), (197, 131024), (304, 84907), (394, 65512), (431, 59888), (788, 32756), (862, 29944), (1576, 16378), (1724, 14972), (3152, 8189), (3448, 7486), (3743, 6896)]