20289135

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 13418385

約数列:

[1, 3, 5, 15, 37, 111, 139, 185, 263, 417, 555, 695, 789, 1315, 2085, 3945, 5143, 9731, 15429, 25715, 29193, 36557, 48655, 77145, 109671, 145965, 182785, 548355, 1352609, 4057827, 6763045, 20289135]

約数ペア:

[(1, 20289135), (3, 6763045), (5, 4057827), (15, 1352609), (37, 548355), (111, 182785), (139, 145965), (185, 109671), (263, 77145), (417, 48655), (555, 36557), (695, 29193), (789, 25715), (1315, 15429), (2085, 9731), (3945, 5143)]