20154672005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8380321}}^1$

素因数の和:8380376

約数の個数: 16

約数和(自身を含む): 26749987824

約数和(自身を除く): 6595315819

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8380321, 41901605, 108944173, 310071877, 544720865, 1550359385, 4030934401, 20154672005]

約数ペア:

[(1, 20154672005), (5, 4030934401), (13, 1550359385), (37, 544720865), (65, 310071877), (185, 108944173), (481, 41901605), (2405, 8380321)]