20161749075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{189713}}^1$

素因数の和:189848

約数の個数: 48

約数和(自身を含む): 36227785440

約数和(自身を除く): 16066036365

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 109, 195, 325, 327, 545, 975, 1417, 1635, 2725, 4251, 7085, 8175, 21255, 35425, 106275, 189713, 569139, 948565, 2466269, 2845695, 4742825, 7398807, 12331345, 14228475, 20678717, 36994035, 61656725, 62036151, 103393585, 184970175, 268823321, 310180755, 516967925, 806469963, 1344116605, 1550903775, 4032349815, 6720583025, 20161749075]

約数ペア:

[(1, 20161749075), (3, 6720583025), (5, 4032349815), (13, 1550903775), (15, 1344116605), (25, 806469963), (39, 516967925), (65, 310180755), (75, 268823321), (109, 184970175), (195, 103393585), (325, 62036151), (327, 61656725), (545, 36994035), (975, 20678717), (1417, 14228475), (1635, 12331345), (2725, 7398807), (4251, 4742825), (7085, 2845695), (8175, 2466269), (21255, 948565), (35425, 569139), (106275, 189713)]