249021695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 371952000

約数和(自身を除く): 122930305

約数列:

[1, 5, 13, 17, 19, 29, 65, 85, 95, 145, 221, 247, 323, 377, 409, 493, 551, 1105, 1235, 1615, 1885, 2045, 2465, 2755, 4199, 5317, 6409, 6953, 7163, 7771, 9367, 11861, 20995, 26585, 32045, 34765, 35815, 38855, 46835, 59305, 90389, 101023, 121771, 132107, 154193, 201637, 225359, 451945, 505115, 608855, 660535, 770965, 1008185, 1126795, 1717391, 2621281, 2929667, 3831103, 8586955, 13106405, 14648335, 19155515, 49804339, 249021695]

約数ペア:

[(1, 249021695), (5, 49804339), (13, 19155515), (17, 14648335), (19, 13106405), (29, 8586955), (65, 3831103), (85, 2929667), (95, 2621281), (145, 1717391), (221, 1126795), (247, 1008185), (323, 770965), (377, 660535), (409, 608855), (493, 505115), (551, 451945), (1105, 225359), (1235, 201637), (1615, 154193), (1885, 132107), (2045, 121771), (2465, 101023), (2755, 90389), (4199, 59305), (5317, 46835), (6409, 38855), (6953, 35815), (7163, 34765), (7771, 32045), (9367, 26585), (11861, 20995)]