161808645

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1109}}^1$

素因数の和:1325

約数の個数: 32

約数和(自身を含む): 264695040

約数和(自身を除く): 102886395

約数列:

[1, 3, 5, 15, 71, 137, 213, 355, 411, 685, 1065, 1109, 2055, 3327, 5545, 9727, 16635, 29181, 48635, 78739, 145905, 151933, 236217, 393695, 455799, 759665, 1181085, 2278995, 10787243, 32361729, 53936215, 161808645]

約数ペア:

[(1, 161808645), (3, 53936215), (5, 32361729), (15, 10787243), (71, 2278995), (137, 1181085), (213, 759665), (355, 455799), (411, 393695), (685, 236217), (1065, 151933), (1109, 145905), (2055, 78739), (3327, 48635), (5545, 29181), (9727, 16635)]