19758970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 45121536

約数和(自身を除く): 25362566

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 67, 70, 77, 110, 134, 154, 335, 383, 385, 469, 670, 737, 766, 770, 938, 1474, 1915, 2345, 2681, 3685, 3830, 4213, 4690, 5159, 5362, 7370, 8426, 10318, 13405, 21065, 25661, 25795, 26810, 29491, 42130, 51322, 51590, 58982, 128305, 147455, 179627, 256610, 282271, 294910, 359254, 564542, 898135, 1411355, 1796270, 1975897, 2822710, 3951794, 9879485, 19758970]

約数ペア:

[(1, 19758970), (2, 9879485), (5, 3951794), (7, 2822710), (10, 1975897), (11, 1796270), (14, 1411355), (22, 898135), (35, 564542), (55, 359254), (67, 294910), (70, 282271), (77, 256610), (110, 179627), (134, 147455), (154, 128305), (335, 58982), (383, 51590), (385, 51322), (469, 42130), (670, 29491), (737, 26810), (766, 25795), (770, 25661), (938, 21065), (1474, 13405), (1915, 10318), (2345, 8426), (2681, 7370), (3685, 5362), (3830, 5159), (4213, 4690)]