68213648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{491}}^1$

素因数の和:975

約数の個数: 40

約数和(自身を含む): 139708320

約数和(自身を除く): 71494672

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 457, 491, 914, 982, 1828, 1964, 3656, 3928, 7312, 7856, 8683, 9329, 17366, 18658, 34732, 37316, 69464, 74632, 138928, 149264, 224387, 448774, 897548, 1795096, 3590192, 4263353, 8526706, 17053412, 34106824, 68213648]

約数ペア:

[(1, 68213648), (2, 34106824), (4, 17053412), (8, 8526706), (16, 4263353), (19, 3590192), (38, 1795096), (76, 897548), (152, 448774), (304, 224387), (457, 149264), (491, 138928), (914, 74632), (982, 69464), (1828, 37316), (1964, 34732), (3656, 18658), (3928, 17366), (7312, 9329), (7856, 8683)]