20339015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 26873856

約数和(自身を除く): 6534841

約数列:

[1, 5, 23, 47, 53, 71, 115, 235, 265, 355, 1081, 1219, 1633, 2491, 3337, 3763, 5405, 6095, 8165, 12455, 16685, 18815, 57293, 76751, 86549, 176861, 286465, 383755, 432745, 884305, 4067803, 20339015]

約数ペア:

[(1, 20339015), (5, 4067803), (23, 884305), (47, 432745), (53, 383755), (71, 286465), (115, 176861), (235, 86549), (265, 76751), (355, 57293), (1081, 18815), (1219, 16685), (1633, 12455), (2491, 8165), (3337, 6095), (3763, 5405)]