68896568

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 141312600

約数和(自身を除く): 72416032

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 169, 262, 338, 389, 524, 676, 778, 1048, 1352, 1556, 1703, 3112, 3406, 5057, 6812, 10114, 13624, 20228, 22139, 40456, 44278, 50959, 65741, 88556, 101918, 131482, 177112, 203836, 262964, 407672, 525928, 662467, 1324934, 2649868, 5299736, 8612071, 17224142, 34448284, 68896568]

約数ペア:

[(1, 68896568), (2, 34448284), (4, 17224142), (8, 8612071), (13, 5299736), (26, 2649868), (52, 1324934), (104, 662467), (131, 525928), (169, 407672), (262, 262964), (338, 203836), (389, 177112), (524, 131482), (676, 101918), (778, 88556), (1048, 65741), (1352, 50959), (1556, 44278), (1703, 40456), (3112, 22139), (3406, 20228), (5057, 13624), (6812, 10114)]