261799678

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{7477}}^1$

素因数の和:7588

約数の個数: 32

約数和(自身を含む): 467345088

約数和(自身を除く): 205545410

約数列:

[1, 2, 7, 14, 41, 61, 82, 122, 287, 427, 574, 854, 2501, 5002, 7477, 14954, 17507, 35014, 52339, 104678, 306557, 456097, 613114, 912194, 2145899, 3192679, 4291798, 6385358, 18699977, 37399954, 130899839, 261799678]

約数ペア:

[(1, 261799678), (2, 130899839), (7, 37399954), (14, 18699977), (41, 6385358), (61, 4291798), (82, 3192679), (122, 2145899), (287, 912194), (427, 613114), (574, 456097), (854, 306557), (2501, 104678), (5002, 52339), (7477, 35014), (14954, 17507)]