15680415

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1487}}^1$

素因数の和:1551

約数の個数: 32

約数和(自身を含む): 27141120

約数和(自身を除く): 11460705

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 111, 185, 285, 555, 703, 1487, 2109, 3515, 4461, 7435, 10545, 22305, 28253, 55019, 84759, 141265, 165057, 275095, 423795, 825285, 1045361, 3136083, 5226805, 15680415]

約数ペア:

[(1, 15680415), (3, 5226805), (5, 3136083), (15, 1045361), (19, 825285), (37, 423795), (57, 275095), (95, 165057), (111, 141265), (185, 84759), (285, 55019), (555, 28253), (703, 22305), (1487, 10545), (2109, 7435), (3515, 4461)]