15684625

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 48

約数和(自身を含む): 23154768

約数和(自身を除く): 7470143

約数列:

[1, 5, 11, 17, 25, 55, 61, 85, 121, 125, 187, 275, 305, 425, 605, 671, 935, 1037, 1375, 1525, 2057, 2125, 3025, 3355, 4675, 5185, 7381, 7625, 10285, 11407, 15125, 16775, 23375, 25925, 36905, 51425, 57035, 83875, 125477, 129625, 184525, 257125, 285175, 627385, 922625, 1425875, 3136925, 15684625]

約数ペア:

[(1, 15684625), (5, 3136925), (11, 1425875), (17, 922625), (25, 627385), (55, 285175), (61, 257125), (85, 184525), (121, 129625), (125, 125477), (187, 83875), (275, 57035), (305, 51425), (425, 36905), (605, 25925), (671, 23375), (935, 16775), (1037, 15125), (1375, 11407), (1525, 10285), (2057, 7625), (2125, 7381), (3025, 5185), (3355, 4675)]