20479740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1973}}^1$

素因数の和:2158

約数の個数: 48

約数和(自身を含む): 57703968

約数和(自身を除く): 37224228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173, 346, 519, 692, 865, 1038, 1730, 1973, 2076, 2595, 3460, 3946, 5190, 5919, 7892, 9865, 10380, 11838, 19730, 23676, 29595, 39460, 59190, 118380, 341329, 682658, 1023987, 1365316, 1706645, 2047974, 3413290, 4095948, 5119935, 6826580, 10239870, 20479740]

約数ペア:

[(1, 20479740), (2, 10239870), (3, 6826580), (4, 5119935), (5, 4095948), (6, 3413290), (10, 2047974), (12, 1706645), (15, 1365316), (20, 1023987), (30, 682658), (60, 341329), (173, 118380), (346, 59190), (519, 39460), (692, 29595), (865, 23676), (1038, 19730), (1730, 11838), (1973, 10380), (2076, 9865), (2595, 7892), (3460, 5919), (3946, 5190)]