19306420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{577}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 46609920

約数和(自身を除く): 27303500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 577, 956, 1154, 1195, 1673, 2308, 2390, 2885, 3346, 4039, 4780, 5770, 6692, 8078, 8365, 11540, 16156, 16730, 20195, 33460, 40390, 80780, 137903, 275806, 551612, 689515, 965321, 1379030, 1930642, 2758060, 3861284, 4826605, 9653210, 19306420]

約数ペア:

[(1, 19306420), (2, 9653210), (4, 4826605), (5, 3861284), (7, 2758060), (10, 1930642), (14, 1379030), (20, 965321), (28, 689515), (35, 551612), (70, 275806), (140, 137903), (239, 80780), (478, 40390), (577, 33460), (956, 20195), (1154, 16730), (1195, 16156), (1673, 11540), (2308, 8365), (2390, 8078), (2885, 6692), (3346, 5770), (4039, 4780)]