20081505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1291}}^1$

素因数の和:1377

約数の個数: 32

約数和(自身を含む): 34604928

約数和(自身を除く): 14523423

約数列:

[1, 3, 5, 15, 17, 51, 61, 85, 183, 255, 305, 915, 1037, 1291, 3111, 3873, 5185, 6455, 15555, 19365, 21947, 65841, 78751, 109735, 236253, 329205, 393755, 1181265, 1338767, 4016301, 6693835, 20081505]

約数ペア:

[(1, 20081505), (3, 6693835), (5, 4016301), (15, 1338767), (17, 1181265), (51, 393755), (61, 329205), (85, 236253), (183, 109735), (255, 78751), (305, 65841), (915, 21947), (1037, 19365), (1291, 15555), (3111, 6455), (3873, 5185)]