18304825

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 29176704

約数和(自身を除く): 10871879

約数列:

[1, 5, 7, 11, 25, 35, 37, 55, 77, 175, 185, 257, 259, 275, 385, 407, 925, 1285, 1295, 1799, 1925, 2035, 2827, 2849, 6425, 6475, 8995, 9509, 10175, 14135, 14245, 19789, 44975, 47545, 66563, 70675, 71225, 98945, 104599, 237725, 332815, 494725, 522995, 732193, 1664075, 2614975, 3660965, 18304825]

約数ペア:

[(1, 18304825), (5, 3660965), (7, 2614975), (11, 1664075), (25, 732193), (35, 522995), (37, 494725), (55, 332815), (77, 237725), (175, 104599), (185, 98945), (257, 71225), (259, 70675), (275, 66563), (385, 47545), (407, 44975), (925, 19789), (1285, 14245), (1295, 14135), (1799, 10175), (1925, 9509), (2035, 8995), (2827, 6475), (2849, 6425)]