19890910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8053}}^1$

素因数の和:8092

約数の個数: 32

約数和(自身を含む): 40592160

約数和(自身を除く): 20701250

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8053, 16106, 40265, 80530, 104689, 153007, 209378, 306014, 523445, 765035, 1046890, 1530070, 1989091, 3978182, 9945455, 19890910]

約数ペア:

[(1, 19890910), (2, 9945455), (5, 3978182), (10, 1989091), (13, 1530070), (19, 1046890), (26, 765035), (38, 523445), (65, 306014), (95, 209378), (130, 153007), (190, 104689), (247, 80530), (494, 40265), (1235, 16106), (2470, 8053)]