491005696

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 1044156960

約数和(自身を除く): 553151264

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 257, 272, 439, 514, 544, 878, 1028, 1088, 1756, 2056, 2176, 3512, 4112, 4352, 4369, 7024, 7463, 8224, 8738, 14048, 14926, 16448, 17476, 28096, 29852, 32896, 34952, 56192, 59704, 65792, 69904, 112384, 112823, 119408, 139808, 225646, 238816, 279616, 451292, 477632, 559232, 902584, 955264, 1118464, 1805168, 1910528, 1917991, 3610336, 3835982, 7220672, 7671964, 14441344, 15343928, 28882688, 30687856, 61375712, 122751424, 245502848, 491005696]

約数ペア:

[(1, 491005696), (2, 245502848), (4, 122751424), (8, 61375712), (16, 30687856), (17, 28882688), (32, 15343928), (34, 14441344), (64, 7671964), (68, 7220672), (128, 3835982), (136, 3610336), (256, 1917991), (257, 1910528), (272, 1805168), (439, 1118464), (514, 955264), (544, 902584), (878, 559232), (1028, 477632), (1088, 451292), (1756, 279616), (2056, 238816), (2176, 225646), (3512, 139808), (4112, 119408), (4352, 112823), (4369, 112384), (7024, 69904), (7463, 65792), (8224, 59704), (8738, 56192), (14048, 34952), (14926, 32896), (16448, 29852), (17476, 28096)]