20155395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2521}}^1$

素因数の和:2583

約数の個数: 32

約数和(自身を含む): 35590464

約数和(自身を除く): 15435069

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2521, 2665, 7563, 7995, 12605, 32773, 37815, 98319, 103361, 163865, 310083, 491595, 516805, 1343693, 1550415, 4031079, 6718465, 20155395]

約数ペア:

[(1, 20155395), (3, 6718465), (5, 4031079), (13, 1550415), (15, 1343693), (39, 516805), (41, 491595), (65, 310083), (123, 163865), (195, 103361), (205, 98319), (533, 37815), (615, 32773), (1599, 12605), (2521, 7995), (2665, 7563)]