261894840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13901}}^1$

素因数の和:14072

約数の個数: 64

約数和(自身を含む): 790745760

約数和(自身を除く): 528850920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 3140, 3768, 4710, 6280, 9420, 13901, 18840, 27802, 41703, 55604, 69505, 83406, 111208, 139010, 166812, 208515, 278020, 333624, 417030, 556040, 834060, 1668120, 2182457, 4364914, 6547371, 8729828, 10912285, 13094742, 17459656, 21824570, 26189484, 32736855, 43649140, 52378968, 65473710, 87298280, 130947420, 261894840]

約数ペア:

[(1, 261894840), (2, 130947420), (3, 87298280), (4, 65473710), (5, 52378968), (6, 43649140), (8, 32736855), (10, 26189484), (12, 21824570), (15, 17459656), (20, 13094742), (24, 10912285), (30, 8729828), (40, 6547371), (60, 4364914), (120, 2182457), (157, 1668120), (314, 834060), (471, 556040), (628, 417030), (785, 333624), (942, 278020), (1256, 208515), (1570, 166812), (1884, 139010), (2355, 111208), (3140, 83406), (3768, 69505), (4710, 55604), (6280, 41703), (9420, 27802), (13901, 18840)]