15695855920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{21031}}^1$

素因数の和:21554

約数の個数: 80

約数和(自身を含む): 38493607680

約数和(自身を除く): 22797751760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 491, 760, 982, 1520, 1964, 2455, 3928, 4910, 7856, 9329, 9820, 18658, 19640, 21031, 37316, 39280, 42062, 46645, 74632, 84124, 93290, 105155, 149264, 168248, 186580, 210310, 336496, 373160, 399589, 420620, 746320, 799178, 841240, 1598356, 1682480, 1997945, 3196712, 3995890, 6393424, 7991780, 10326221, 15983560, 20652442, 31967120, 41304884, 51631105, 82609768, 103262210, 165219536, 196198199, 206524420, 392396398, 413048840, 784792796, 826097680, 980990995, 1569585592, 1961981990, 3139171184, 3923963980, 7847927960, 15695855920]

約数ペア:

[(1, 15695855920), (2, 7847927960), (4, 3923963980), (5, 3139171184), (8, 1961981990), (10, 1569585592), (16, 980990995), (19, 826097680), (20, 784792796), (38, 413048840), (40, 392396398), (76, 206524420), (80, 196198199), (95, 165219536), (152, 103262210), (190, 82609768), (304, 51631105), (380, 41304884), (491, 31967120), (760, 20652442), (982, 15983560), (1520, 10326221), (1964, 7991780), (2455, 6393424), (3928, 3995890), (4910, 3196712), (7856, 1997945), (9329, 1682480), (9820, 1598356), (18658, 841240), (19640, 799178), (21031, 746320), (37316, 420620), (39280, 399589), (42062, 373160), (46645, 336496), (74632, 210310), (84124, 186580), (93290, 168248), (105155, 149264)]