81900135

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{709}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 151519680

約数和(自身を除く): 69619545

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 151, 153, 255, 453, 709, 755, 765, 1359, 2127, 2265, 2567, 3545, 6381, 6795, 7701, 10635, 12053, 12835, 23103, 31905, 36159, 38505, 60265, 107059, 108477, 115515, 180795, 321177, 535295, 542385, 963531, 1605885, 1820003, 4817655, 5460009, 9100015, 16380027, 27300045, 81900135]

約数ペア:

[(1, 81900135), (3, 27300045), (5, 16380027), (9, 9100015), (15, 5460009), (17, 4817655), (45, 1820003), (51, 1605885), (85, 963531), (151, 542385), (153, 535295), (255, 321177), (453, 180795), (709, 115515), (755, 108477), (765, 107059), (1359, 60265), (2127, 38505), (2265, 36159), (2567, 31905), (3545, 23103), (6381, 12835), (6795, 12053), (7701, 10635)]