28875725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 11835955

約数列:

[1, 5, 19, 25, 31, 37, 53, 95, 155, 185, 265, 475, 589, 703, 775, 925, 1007, 1147, 1325, 1643, 1961, 2945, 3515, 5035, 5735, 8215, 9805, 14725, 17575, 21793, 25175, 28675, 31217, 37259, 41075, 49025, 60791, 108965, 156085, 186295, 303955, 544825, 780425, 931475, 1155029, 1519775, 5775145, 28875725]

約数ペア:

[(1, 28875725), (5, 5775145), (19, 1519775), (25, 1155029), (31, 931475), (37, 780425), (53, 544825), (95, 303955), (155, 186295), (185, 156085), (265, 108965), (475, 60791), (589, 49025), (703, 41075), (775, 37259), (925, 31217), (1007, 28675), (1147, 25175), (1325, 21793), (1643, 17575), (1961, 14725), (2945, 9805), (3515, 8215), (5035, 5735)]