72438808

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 148559400

約数和(自身を除く): 76120592

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 169, 262, 338, 409, 524, 676, 818, 1048, 1352, 1636, 1703, 3272, 3406, 5317, 6812, 10634, 13624, 21268, 22139, 42536, 44278, 53579, 69121, 88556, 107158, 138242, 177112, 214316, 276484, 428632, 552968, 696527, 1393054, 2786108, 5572216, 9054851, 18109702, 36219404, 72438808]

約数ペア:

[(1, 72438808), (2, 36219404), (4, 18109702), (8, 9054851), (13, 5572216), (26, 2786108), (52, 1393054), (104, 696527), (131, 552968), (169, 428632), (262, 276484), (338, 214316), (409, 177112), (524, 138242), (676, 107158), (818, 88556), (1048, 69121), (1352, 53579), (1636, 44278), (1703, 42536), (3272, 22139), (3406, 21268), (5317, 13624), (6812, 10634)]