257168312

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{3313}}^1$

素因数の和:3663

約数の個数: 32

約数和(自身を含む): 499486080

約数和(自身を除く): 242317768

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 313, 626, 1252, 2504, 3313, 6626, 9703, 13252, 19406, 26504, 38812, 77624, 102703, 205406, 410812, 821624, 1036969, 2073938, 4147876, 8295752, 32146039, 64292078, 128584156, 257168312]

約数ペア:

[(1, 257168312), (2, 128584156), (4, 64292078), (8, 32146039), (31, 8295752), (62, 4147876), (124, 2073938), (248, 1036969), (313, 821624), (626, 410812), (1252, 205406), (2504, 102703), (3313, 77624), (6626, 38812), (9703, 26504), (13252, 19406)]