217555768

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 436043520

約数和(自身を除く): 218487752

約数列:

[1, 2, 4, 8, 31, 61, 62, 73, 122, 124, 146, 197, 244, 248, 292, 394, 488, 584, 788, 1576, 1891, 2263, 3782, 4453, 4526, 6107, 7564, 8906, 9052, 12017, 12214, 14381, 15128, 17812, 18104, 24034, 24428, 28762, 35624, 48068, 48856, 57524, 96136, 115048, 138043, 276086, 372527, 445811, 552172, 745054, 877241, 891622, 1104344, 1490108, 1754482, 1783244, 2980216, 3508964, 3566488, 7017928, 27194471, 54388942, 108777884, 217555768]

約数ペア:

[(1, 217555768), (2, 108777884), (4, 54388942), (8, 27194471), (31, 7017928), (61, 3566488), (62, 3508964), (73, 2980216), (122, 1783244), (124, 1754482), (146, 1490108), (197, 1104344), (244, 891622), (248, 877241), (292, 745054), (394, 552172), (488, 445811), (584, 372527), (788, 276086), (1576, 138043), (1891, 115048), (2263, 96136), (3782, 57524), (4453, 48856), (4526, 48068), (6107, 35624), (7564, 28762), (8906, 24428), (9052, 24034), (12017, 18104), (12214, 17812), (14381, 15128)]