19787560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38053}}^1$

素因数の和:38077

約数の個数: 32

約数和(自身を含む): 47948040

約数和(自身を除く): 28160480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38053, 76106, 152212, 190265, 304424, 380530, 494689, 761060, 989378, 1522120, 1978756, 2473445, 3957512, 4946890, 9893780, 19787560]

約数ペア:

[(1, 19787560), (2, 9893780), (4, 4946890), (5, 3957512), (8, 2473445), (10, 1978756), (13, 1522120), (20, 989378), (26, 761060), (40, 494689), (52, 380530), (65, 304424), (104, 190265), (130, 152212), (260, 76106), (520, 38053)]