217264440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{353}}^1$

素因数の和:613

約数の個数: 128

約数和(自身を含む): 685117440

約数和(自身を除く): 467853000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 223, 230, 276, 345, 353, 446, 460, 552, 669, 690, 706, 892, 920, 1059, 1115, 1338, 1380, 1412, 1765, 1784, 2118, 2230, 2676, 2760, 2824, 3345, 3530, 4236, 4460, 5129, 5295, 5352, 6690, 7060, 8119, 8472, 8920, 10258, 10590, 13380, 14120, 15387, 16238, 20516, 21180, 24357, 25645, 26760, 30774, 32476, 40595, 41032, 42360, 48714, 51290, 61548, 64952, 76935, 78719, 81190, 97428, 102580, 121785, 123096, 153870, 157438, 162380, 194856, 205160, 236157, 243570, 307740, 314876, 324760, 393595, 472314, 487140, 615480, 629752, 787190, 944628, 974280, 1180785, 1574380, 1810537, 1889256, 2361570, 3148760, 3621074, 4723140, 5431611, 7242148, 9052685, 9446280, 10863222, 14484296, 18105370, 21726444, 27158055, 36210740, 43452888, 54316110, 72421480, 108632220, 217264440]

約数ペア:

[(1, 217264440), (2, 108632220), (3, 72421480), (4, 54316110), (5, 43452888), (6, 36210740), (8, 27158055), (10, 21726444), (12, 18105370), (15, 14484296), (20, 10863222), (23, 9446280), (24, 9052685), (30, 7242148), (40, 5431611), (46, 4723140), (60, 3621074), (69, 3148760), (92, 2361570), (115, 1889256), (120, 1810537), (138, 1574380), (184, 1180785), (223, 974280), (230, 944628), (276, 787190), (345, 629752), (353, 615480), (446, 487140), (460, 472314), (552, 393595), (669, 324760), (690, 314876), (706, 307740), (892, 243570), (920, 236157), (1059, 205160), (1115, 194856), (1338, 162380), (1380, 157438), (1412, 153870), (1765, 123096), (1784, 121785), (2118, 102580), (2230, 97428), (2676, 81190), (2760, 78719), (2824, 76935), (3345, 64952), (3530, 61548), (4236, 51290), (4460, 48714), (5129, 42360), (5295, 41032), (5352, 40595), (6690, 32476), (7060, 30774), (8119, 26760), (8472, 25645), (8920, 24357), (10258, 21180), (10590, 20516), (13380, 16238), (14120, 15387)]