209225715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 366996096

約数和(自身を除く): 157770381

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 113, 137, 159, 255, 265, 339, 411, 565, 685, 795, 901, 1695, 1921, 2055, 2329, 2703, 4505, 5763, 5989, 6987, 7261, 9605, 11645, 13515, 15481, 17967, 21783, 28815, 29945, 34935, 36305, 46443, 77405, 89835, 101813, 108915, 123437, 232215, 263177, 305439, 370311, 509065, 617185, 789531, 820493, 1315885, 1527195, 1851555, 2461479, 3947655, 4102465, 12307395, 13948381, 41845143, 69741905, 209225715]

約数ペア:

[(1, 209225715), (3, 69741905), (5, 41845143), (15, 13948381), (17, 12307395), (51, 4102465), (53, 3947655), (85, 2461479), (113, 1851555), (137, 1527195), (159, 1315885), (255, 820493), (265, 789531), (339, 617185), (411, 509065), (565, 370311), (685, 305439), (795, 263177), (901, 232215), (1695, 123437), (1921, 108915), (2055, 101813), (2329, 89835), (2703, 77405), (4505, 46443), (5763, 36305), (5989, 34935), (6987, 29945), (7261, 28815), (9605, 21783), (11645, 17967), (13515, 15481)]