19717739248

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{1907}}^1$

素因数の和:2194

約数の個数: 80

約数和(自身を含む): 39669380640

約数和(自身を除く): 19951641392

約数列:

[1, 2, 4, 8, 16, 53, 89, 106, 137, 178, 212, 274, 356, 424, 548, 712, 848, 1096, 1424, 1907, 2192, 3814, 4717, 7261, 7628, 9434, 12193, 14522, 15256, 18868, 24386, 29044, 30512, 37736, 48772, 58088, 75472, 97544, 101071, 116176, 169723, 195088, 202142, 261259, 339446, 404284, 522518, 646229, 678892, 808568, 1045036, 1292458, 1357784, 1617136, 2090072, 2584916, 2715568, 4180144, 5169832, 8995319, 10339664, 13846727, 17990638, 23252051, 27693454, 35981276, 46504102, 55386908, 71962552, 93008204, 110773816, 143925104, 186016408, 221547632, 372032816, 1232358703, 2464717406, 4929434812, 9858869624, 19717739248]

約数ペア:

[(1, 19717739248), (2, 9858869624), (4, 4929434812), (8, 2464717406), (16, 1232358703), (53, 372032816), (89, 221547632), (106, 186016408), (137, 143925104), (178, 110773816), (212, 93008204), (274, 71962552), (356, 55386908), (424, 46504102), (548, 35981276), (712, 27693454), (848, 23252051), (1096, 17990638), (1424, 13846727), (1907, 10339664), (2192, 8995319), (3814, 5169832), (4717, 4180144), (7261, 2715568), (7628, 2584916), (9434, 2090072), (12193, 1617136), (14522, 1357784), (15256, 1292458), (18868, 1045036), (24386, 808568), (29044, 678892), (30512, 646229), (37736, 522518), (48772, 404284), (58088, 339446), (75472, 261259), (97544, 202142), (101071, 195088), (116176, 169723)]