8138680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 20412000

約数和(自身を除く): 12273320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 349, 424, 440, 530, 583, 698, 1060, 1166, 1396, 1745, 2120, 2332, 2792, 2915, 3490, 3839, 4664, 5830, 6980, 7678, 11660, 13960, 15356, 18497, 19195, 23320, 30712, 36994, 38390, 73988, 76780, 92485, 147976, 153560, 184970, 203467, 369940, 406934, 739880, 813868, 1017335, 1627736, 2034670, 4069340, 8138680]

約数ペア:

[(1, 8138680), (2, 4069340), (4, 2034670), (5, 1627736), (8, 1017335), (10, 813868), (11, 739880), (20, 406934), (22, 369940), (40, 203467), (44, 184970), (53, 153560), (55, 147976), (88, 92485), (106, 76780), (110, 73988), (212, 38390), (220, 36994), (265, 30712), (349, 23320), (424, 19195), (440, 18497), (530, 15356), (583, 13960), (698, 11660), (1060, 7678), (1166, 6980), (1396, 5830), (1745, 4664), (2120, 3839), (2332, 3490), (2792, 2915)]