25172888

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 52418520

約数和(自身を除く): 27245632

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 169, 172, 338, 344, 433, 559, 676, 866, 1118, 1352, 1732, 2236, 3464, 4472, 5629, 7267, 11258, 14534, 18619, 22516, 29068, 37238, 45032, 58136, 73177, 74476, 146354, 148952, 242047, 292708, 484094, 585416, 968188, 1936376, 3146611, 6293222, 12586444, 25172888]

約数ペア:

[(1, 25172888), (2, 12586444), (4, 6293222), (8, 3146611), (13, 1936376), (26, 968188), (43, 585416), (52, 484094), (86, 292708), (104, 242047), (169, 148952), (172, 146354), (338, 74476), (344, 73177), (433, 58136), (559, 45032), (676, 37238), (866, 29068), (1118, 22516), (1352, 18619), (1732, 14534), (2236, 11258), (3464, 7267), (4472, 5629)]