1640356900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{180259}}^1$

素因数の和:180293

約数の個数: 72

約数和(自身を含む): 4381039040

約数和(自身を除く): 2740682140

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 4550, 9100, 180259, 360518, 721036, 901295, 1261813, 1802590, 2343367, 2523626, 3605180, 4506475, 4686734, 5047252, 6309065, 9012950, 9373468, 11716835, 12618130, 16403569, 18025900, 23433670, 25236260, 31545325, 32807138, 46867340, 58584175, 63090650, 65614276, 82017845, 117168350, 126181300, 164035690, 234336700, 328071380, 410089225, 820178450, 1640356900]

約数ペア:

[(1, 1640356900), (2, 820178450), (4, 410089225), (5, 328071380), (7, 234336700), (10, 164035690), (13, 126181300), (14, 117168350), (20, 82017845), (25, 65614276), (26, 63090650), (28, 58584175), (35, 46867340), (50, 32807138), (52, 31545325), (65, 25236260), (70, 23433670), (91, 18025900), (100, 16403569), (130, 12618130), (140, 11716835), (175, 9373468), (182, 9012950), (260, 6309065), (325, 5047252), (350, 4686734), (364, 4506475), (455, 3605180), (650, 2523626), (700, 2343367), (910, 1802590), (1300, 1261813), (1820, 901295), (2275, 721036), (4550, 360518), (9100, 180259)]