19186000

素因数分解:

$2^4\times 5^3\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:257

約数の個数: 80

約数和(自身を含む): 47528208

約数和(自身を除く): 28342208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 100, 106, 125, 181, 200, 212, 250, 265, 362, 400, 424, 500, 530, 724, 848, 905, 1000, 1060, 1325, 1448, 1810, 2000, 2120, 2650, 2896, 3620, 4240, 4525, 5300, 6625, 7240, 9050, 9593, 10600, 13250, 14480, 18100, 19186, 21200, 22625, 26500, 36200, 38372, 45250, 47965, 53000, 72400, 76744, 90500, 95930, 106000, 153488, 181000, 191860, 239825, 362000, 383720, 479650, 767440, 959300, 1199125, 1918600, 2398250, 3837200, 4796500, 9593000, 19186000]

約数ペア:

[(1, 19186000), (2, 9593000), (4, 4796500), (5, 3837200), (8, 2398250), (10, 1918600), (16, 1199125), (20, 959300), (25, 767440), (40, 479650), (50, 383720), (53, 362000), (80, 239825), (100, 191860), (106, 181000), (125, 153488), (181, 106000), (200, 95930), (212, 90500), (250, 76744), (265, 72400), (362, 53000), (400, 47965), (424, 45250), (500, 38372), (530, 36200), (724, 26500), (848, 22625), (905, 21200), (1000, 19186), (1060, 18100), (1325, 14480), (1448, 13250), (1810, 10600), (2000, 9593), (2120, 9050), (2650, 7240), (2896, 6625), (3620, 5300), (4240, 4525)]