25292655

素因数分解:

$3^9\times 5^1\times {\mathrm{257}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 45703152

約数和(自身を除く): 20410497

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 257, 405, 729, 771, 1215, 1285, 2187, 2313, 3645, 3855, 6561, 6939, 10935, 11565, 19683, 20817, 32805, 34695, 62451, 98415, 104085, 187353, 312255, 562059, 936765, 1686177, 2810295, 5058531, 8430885, 25292655]

約数ペア:

[(1, 25292655), (3, 8430885), (5, 5058531), (9, 2810295), (15, 1686177), (27, 936765), (45, 562059), (81, 312255), (135, 187353), (243, 104085), (257, 98415), (405, 62451), (729, 34695), (771, 32805), (1215, 20817), (1285, 19683), (2187, 11565), (2313, 10935), (3645, 6939), (3855, 6561)]