81051880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3181}}^1$

素因数の和:3219

約数の個数: 96

約数和(自身を含む): 228531240

約数和(自身を除く): 147479360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1274, 1820, 1960, 2548, 3181, 3185, 3640, 5096, 6362, 6370, 12724, 12740, 15905, 22267, 25448, 25480, 31810, 41353, 44534, 63620, 82706, 89068, 111335, 127240, 155869, 165412, 178136, 206765, 222670, 289471, 311738, 330824, 413530, 445340, 578942, 623476, 779345, 827060, 890680, 1157884, 1246952, 1447355, 1558690, 1654120, 2026297, 2315768, 2894710, 3117380, 4052594, 5789420, 6234760, 8105188, 10131485, 11578840, 16210376, 20262970, 40525940, 81051880]

約数ペア:

[(1, 81051880), (2, 40525940), (4, 20262970), (5, 16210376), (7, 11578840), (8, 10131485), (10, 8105188), (13, 6234760), (14, 5789420), (20, 4052594), (26, 3117380), (28, 2894710), (35, 2315768), (40, 2026297), (49, 1654120), (52, 1558690), (56, 1447355), (65, 1246952), (70, 1157884), (91, 890680), (98, 827060), (104, 779345), (130, 623476), (140, 578942), (182, 445340), (196, 413530), (245, 330824), (260, 311738), (280, 289471), (364, 222670), (392, 206765), (455, 178136), (490, 165412), (520, 155869), (637, 127240), (728, 111335), (910, 89068), (980, 82706), (1274, 63620), (1820, 44534), (1960, 41353), (2548, 31810), (3181, 25480), (3185, 25448), (3640, 22267), (5096, 15905), (6362, 12740), (6370, 12724)]