681125145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1291}}^1\times {\mathrm{2069}}^1$

素因数の和:3385

約数の個数: 32

約数和(自身を含む): 1155358080

約数和(自身を除く): 474232935

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 1291, 2069, 3873, 6207, 6455, 10345, 19365, 21947, 31035, 35173, 65841, 105519, 109735, 175865, 329205, 527595, 2671079, 8013237, 13355395, 40066185, 45408343, 136225029, 227041715, 681125145]

約数ペア:

[(1, 681125145), (3, 227041715), (5, 136225029), (15, 45408343), (17, 40066185), (51, 13355395), (85, 8013237), (255, 2671079), (1291, 527595), (2069, 329205), (3873, 175865), (6207, 109735), (6455, 105519), (10345, 65841), (19365, 35173), (21947, 31035)]