2515900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:334

約数の個数: 36

約数和(自身を含む): 5529160

約数和(自身を除く): 3013260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 181, 278, 362, 556, 695, 724, 905, 1390, 1810, 2780, 3475, 3620, 4525, 6950, 9050, 13900, 18100, 25159, 50318, 100636, 125795, 251590, 503180, 628975, 1257950, 2515900]

約数ペア:

[(1, 2515900), (2, 1257950), (4, 628975), (5, 503180), (10, 251590), (20, 125795), (25, 100636), (50, 50318), (100, 25159), (139, 18100), (181, 13900), (278, 9050), (362, 6950), (556, 4525), (695, 3620), (724, 3475), (905, 2780), (1390, 1810)]