81197704

素因数分解:

$2^3\times 7^3\times {\mathrm{127}}^1\times {\mathrm{233}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 179712000

約数和(自身を除く): 98514296

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 127, 196, 233, 254, 343, 392, 466, 508, 686, 889, 932, 1016, 1372, 1631, 1778, 1864, 2744, 3262, 3556, 6223, 6524, 7112, 11417, 12446, 13048, 22834, 24892, 29591, 43561, 45668, 49784, 59182, 79919, 87122, 91336, 118364, 159838, 174244, 207137, 236728, 319676, 348488, 414274, 639352, 828548, 1449959, 1657096, 2899918, 5799836, 10149713, 11599672, 20299426, 40598852, 81197704]

約数ペア:

[(1, 81197704), (2, 40598852), (4, 20299426), (7, 11599672), (8, 10149713), (14, 5799836), (28, 2899918), (49, 1657096), (56, 1449959), (98, 828548), (127, 639352), (196, 414274), (233, 348488), (254, 319676), (343, 236728), (392, 207137), (466, 174244), (508, 159838), (686, 118364), (889, 91336), (932, 87122), (1016, 79919), (1372, 59182), (1631, 49784), (1778, 45668), (1864, 43561), (2744, 29591), (3262, 24892), (3556, 22834), (6223, 13048), (6524, 12446), (7112, 11417)]