311820560

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:840

約数の個数: 80

約数和(自身を含む): 747380736

約数和(自身を除く): 435560176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 127, 188, 235, 254, 376, 470, 508, 635, 653, 752, 940, 1016, 1270, 1306, 1880, 2032, 2540, 2612, 3265, 3760, 5080, 5224, 5969, 6530, 10160, 10448, 11938, 13060, 23876, 26120, 29845, 30691, 47752, 52240, 59690, 61382, 82931, 95504, 119380, 122764, 153455, 165862, 238760, 245528, 306910, 331724, 414655, 477520, 491056, 613820, 663448, 829310, 1227640, 1326896, 1658620, 2455280, 3317240, 3897757, 6634480, 7795514, 15591028, 19488785, 31182056, 38977570, 62364112, 77955140, 155910280, 311820560]

約数ペア:

[(1, 311820560), (2, 155910280), (4, 77955140), (5, 62364112), (8, 38977570), (10, 31182056), (16, 19488785), (20, 15591028), (40, 7795514), (47, 6634480), (80, 3897757), (94, 3317240), (127, 2455280), (188, 1658620), (235, 1326896), (254, 1227640), (376, 829310), (470, 663448), (508, 613820), (635, 491056), (653, 477520), (752, 414655), (940, 331724), (1016, 306910), (1270, 245528), (1306, 238760), (1880, 165862), (2032, 153455), (2540, 122764), (2612, 119380), (3265, 95504), (3760, 82931), (5080, 61382), (5224, 59690), (5969, 52240), (6530, 47752), (10160, 30691), (10448, 29845), (11938, 26120), (13060, 23876)]