51353225

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 83798208

約数和(自身を除く): 32444983

約数列:

[1, 5, 7, 11, 25, 35, 37, 49, 55, 77, 103, 175, 185, 245, 259, 275, 385, 407, 515, 539, 721, 925, 1133, 1225, 1295, 1813, 1925, 2035, 2575, 2695, 2849, 3605, 3811, 5047, 5665, 6475, 7931, 9065, 10175, 13475, 14245, 18025, 19055, 19943, 25235, 26677, 28325, 39655, 41921, 45325, 55517, 71225, 95275, 99715, 126175, 133385, 186739, 198275, 209605, 277585, 293447, 498575, 666925, 933695, 1048025, 1387925, 1467235, 2054129, 4668475, 7336175, 10270645, 51353225]

約数ペア:

[(1, 51353225), (5, 10270645), (7, 7336175), (11, 4668475), (25, 2054129), (35, 1467235), (37, 1387925), (49, 1048025), (55, 933695), (77, 666925), (103, 498575), (175, 293447), (185, 277585), (245, 209605), (259, 198275), (275, 186739), (385, 133385), (407, 126175), (515, 99715), (539, 95275), (721, 71225), (925, 55517), (1133, 45325), (1225, 41921), (1295, 39655), (1813, 28325), (1925, 26677), (2035, 25235), (2575, 19943), (2695, 19055), (2849, 18025), (3605, 14245), (3811, 13475), (5047, 10175), (5665, 9065), (6475, 7931)]