18270700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 46441472

約数和(自身を除く): 28170772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 607, 700, 860, 1075, 1204, 1214, 1505, 2150, 2428, 3010, 3035, 4249, 4300, 6020, 6070, 7525, 8498, 12140, 15050, 15175, 16996, 21245, 26101, 30100, 30350, 42490, 52202, 60700, 84980, 104404, 106225, 130505, 182707, 212450, 261010, 365414, 424900, 522020, 652525, 730828, 913535, 1305050, 1827070, 2610100, 3654140, 4567675, 9135350, 18270700]

約数ペア:

[(1, 18270700), (2, 9135350), (4, 4567675), (5, 3654140), (7, 2610100), (10, 1827070), (14, 1305050), (20, 913535), (25, 730828), (28, 652525), (35, 522020), (43, 424900), (50, 365414), (70, 261010), (86, 212450), (100, 182707), (140, 130505), (172, 106225), (175, 104404), (215, 84980), (301, 60700), (350, 52202), (430, 42490), (602, 30350), (607, 30100), (700, 26101), (860, 21245), (1075, 16996), (1204, 15175), (1214, 15050), (1505, 12140), (2150, 8498), (2428, 7525), (3010, 6070), (3035, 6020), (4249, 4300)]