81956272

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1049}}^1$

素因数の和:1333

約数の個数: 40

約数和(自身を含む): 167958000

約数和(自身を除く): 86001728

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 257, 304, 514, 1028, 1049, 2056, 2098, 4112, 4196, 4883, 8392, 9766, 16784, 19532, 19931, 39064, 39862, 78128, 79724, 159448, 269593, 318896, 539186, 1078372, 2156744, 4313488, 5122267, 10244534, 20489068, 40978136, 81956272]

約数ペア:

[(1, 81956272), (2, 40978136), (4, 20489068), (8, 10244534), (16, 5122267), (19, 4313488), (38, 2156744), (76, 1078372), (152, 539186), (257, 318896), (304, 269593), (514, 159448), (1028, 79724), (1049, 78128), (2056, 39862), (2098, 39064), (4112, 19931), (4196, 19532), (4883, 16784), (8392, 9766)]