28587260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2557}}^1$

素因数の和:2622

約数の個数: 48

約数和(自身を含む): 66180576

約数和(自身を除く): 37593316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2557, 2795, 5114, 5590, 10228, 11180, 12785, 25570, 33241, 51140, 66482, 109951, 132964, 166205, 219902, 332410, 439804, 549755, 664820, 1099510, 1429363, 2199020, 2858726, 5717452, 7146815, 14293630, 28587260]

約数ペア:

[(1, 28587260), (2, 14293630), (4, 7146815), (5, 5717452), (10, 2858726), (13, 2199020), (20, 1429363), (26, 1099510), (43, 664820), (52, 549755), (65, 439804), (86, 332410), (130, 219902), (172, 166205), (215, 132964), (260, 109951), (430, 66482), (559, 51140), (860, 33241), (1118, 25570), (2236, 12785), (2557, 11180), (2795, 10228), (5114, 5590)]