251018716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 485272480

約数和(自身を除く): 234253764

約数列:

[1, 2, 4, 13, 26, 52, 67, 109, 134, 218, 268, 436, 661, 871, 1322, 1417, 1742, 2644, 2834, 3484, 5668, 7303, 8593, 14606, 17186, 29212, 34372, 44287, 72049, 88574, 94939, 144098, 177148, 189878, 288196, 379756, 575731, 936637, 1151462, 1873274, 2302924, 3746548, 4827283, 9654566, 19309132, 62754679, 125509358, 251018716]

約数ペア:

[(1, 251018716), (2, 125509358), (4, 62754679), (13, 19309132), (26, 9654566), (52, 4827283), (67, 3746548), (109, 2302924), (134, 1873274), (218, 1151462), (268, 936637), (436, 575731), (661, 379756), (871, 288196), (1322, 189878), (1417, 177148), (1742, 144098), (2644, 94939), (2834, 88574), (3484, 72049), (5668, 44287), (7303, 34372), (8593, 29212), (14606, 17186)]