257561340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{225931}}^1$

素因数の和:225962

約数の個数: 48

約数和(自身を含む): 759131520

約数和(自身を除く): 501570180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 225931, 451862, 677793, 903724, 1129655, 1355586, 2259310, 2711172, 3388965, 4292689, 4518620, 6777930, 8585378, 12878067, 13555860, 17170756, 21463445, 25756134, 42926890, 51512268, 64390335, 85853780, 128780670, 257561340]

約数ペア:

[(1, 257561340), (2, 128780670), (3, 85853780), (4, 64390335), (5, 51512268), (6, 42926890), (10, 25756134), (12, 21463445), (15, 17170756), (19, 13555860), (20, 12878067), (30, 8585378), (38, 6777930), (57, 4518620), (60, 4292689), (76, 3388965), (95, 2711172), (114, 2259310), (190, 1355586), (228, 1129655), (285, 903724), (380, 677793), (570, 451862), (1140, 225931)]