19144520

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1559}}^1$

素因数の和:1877

約数の個数: 32

約数和(自身を含む): 43243200

約数和(自身を除く): 24098680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 1559, 2456, 3070, 3118, 6140, 6236, 7795, 12280, 12472, 15590, 31180, 62360, 478613, 957226, 1914452, 2393065, 3828904, 4786130, 9572260, 19144520]

約数ペア:

[(1, 19144520), (2, 9572260), (4, 4786130), (5, 3828904), (8, 2393065), (10, 1914452), (20, 957226), (40, 478613), (307, 62360), (614, 31180), (1228, 15590), (1535, 12472), (1559, 12280), (2456, 7795), (3070, 6236), (3118, 6140)]