647966152

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{11317}}^1$

素因数の和:11761

約数の個数: 32

約数和(自身を含む): 1289572920

約数和(自身を除く): 641606768

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 421, 842, 1684, 3368, 7157, 11317, 14314, 22634, 28628, 45268, 57256, 90536, 192389, 384778, 769556, 1539112, 4764457, 9528914, 19057828, 38115656, 80995769, 161991538, 323983076, 647966152]

約数ペア:

[(1, 647966152), (2, 323983076), (4, 161991538), (8, 80995769), (17, 38115656), (34, 19057828), (68, 9528914), (136, 4764457), (421, 1539112), (842, 769556), (1684, 384778), (3368, 192389), (7157, 90536), (11317, 57256), (14314, 45268), (22634, 28628)]