278712728

素因数分解:

$2^3\times 7^1\times {\mathrm{313}}^1\times {\mathrm{15901}}^1$

素因数の和:16227

約数の個数: 32

約数和(自身を含む): 599187360

約数和(自身を除く): 320474632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 313, 626, 1252, 2191, 2504, 4382, 8764, 15901, 17528, 31802, 63604, 111307, 127208, 222614, 445228, 890456, 4977013, 9954026, 19908052, 34839091, 39816104, 69678182, 139356364, 278712728]

約数ペア:

[(1, 278712728), (2, 139356364), (4, 69678182), (7, 39816104), (8, 34839091), (14, 19908052), (28, 9954026), (56, 4977013), (313, 890456), (626, 445228), (1252, 222614), (2191, 127208), (2504, 111307), (4382, 63604), (8764, 31802), (15901, 17528)]