25621808

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:441

約数の個数: 40

約数和(自身を含む): 51330048

約数和(自身を除く): 25708240

約数列:

[1, 2, 4, 8, 16, 43, 86, 167, 172, 223, 334, 344, 446, 668, 688, 892, 1336, 1784, 2672, 3568, 7181, 9589, 14362, 19178, 28724, 37241, 38356, 57448, 74482, 76712, 114896, 148964, 153424, 297928, 595856, 1601363, 3202726, 6405452, 12810904, 25621808]

約数ペア:

[(1, 25621808), (2, 12810904), (4, 6405452), (8, 3202726), (16, 1601363), (43, 595856), (86, 297928), (167, 153424), (172, 148964), (223, 114896), (334, 76712), (344, 74482), (446, 57448), (668, 38356), (688, 37241), (892, 28724), (1336, 19178), (1784, 14362), (2672, 9589), (3568, 7181)]