251015648

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{20807}}^1$

素因数の和:20859

約数の個数: 48

約数和(自身を含む): 550579680

約数和(自身を除く): 299564032

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 104, 116, 208, 232, 377, 416, 464, 754, 928, 1508, 3016, 6032, 12064, 20807, 41614, 83228, 166456, 270491, 332912, 540982, 603403, 665824, 1081964, 1206806, 2163928, 2413612, 4327856, 4827224, 7844239, 8655712, 9654448, 15688478, 19308896, 31376956, 62753912, 125507824, 251015648]

約数ペア:

[(1, 251015648), (2, 125507824), (4, 62753912), (8, 31376956), (13, 19308896), (16, 15688478), (26, 9654448), (29, 8655712), (32, 7844239), (52, 4827224), (58, 4327856), (104, 2413612), (116, 2163928), (208, 1206806), (232, 1081964), (377, 665824), (416, 603403), (464, 540982), (754, 332912), (928, 270491), (1508, 166456), (3016, 83228), (6032, 41614), (12064, 20807)]