129758512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{623839}}^1$

素因数の和:623860

約数の個数: 20

約数和(自身を含む): 270746560

約数和(自身を除く): 140988048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 623839, 1247678, 2495356, 4990712, 8109907, 9981424, 16219814, 32439628, 64879256, 129758512]

約数ペア:

[(1, 129758512), (2, 64879256), (4, 32439628), (8, 16219814), (13, 9981424), (16, 8109907), (26, 4990712), (52, 2495356), (104, 1247678), (208, 623839)]