261786280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{934951}}^1$

素因数の和:934969

約数の個数: 32

約数和(自身を含む): 673165440

約数和(自身を除く): 411379160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 934951, 1869902, 3739804, 4674755, 6544657, 7479608, 9349510, 13089314, 18699020, 26178628, 32723285, 37398040, 52357256, 65446570, 130893140, 261786280]

約数ペア:

[(1, 261786280), (2, 130893140), (4, 65446570), (5, 52357256), (7, 37398040), (8, 32723285), (10, 26178628), (14, 18699020), (20, 13089314), (28, 9349510), (35, 7479608), (40, 6544657), (56, 4674755), (70, 3739804), (140, 1869902), (280, 934951)]