25716915

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 52818480

約数和(自身を除く): 27101565

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 107, 109, 147, 245, 315, 321, 327, 441, 535, 545, 735, 749, 763, 963, 981, 1605, 1635, 2205, 2247, 2289, 3745, 3815, 4815, 4905, 5243, 5341, 6741, 6867, 11235, 11445, 11663, 15729, 16023, 26215, 26705, 33705, 34335, 34989, 47187, 48069, 58315, 78645, 80115, 81641, 104967, 174945, 235935, 240345, 244923, 408205, 524835, 571487, 734769, 1224615, 1714461, 2857435, 3673845, 5143383, 8572305, 25716915]

約数ペア:

[(1, 25716915), (3, 8572305), (5, 5143383), (7, 3673845), (9, 2857435), (15, 1714461), (21, 1224615), (35, 734769), (45, 571487), (49, 524835), (63, 408205), (105, 244923), (107, 240345), (109, 235935), (147, 174945), (245, 104967), (315, 81641), (321, 80115), (327, 78645), (441, 58315), (535, 48069), (545, 47187), (735, 34989), (749, 34335), (763, 33705), (963, 26705), (981, 26215), (1605, 16023), (1635, 15729), (2205, 11663), (2247, 11445), (2289, 11235), (3745, 6867), (3815, 6741), (4815, 5341), (4905, 5243)]