2123165720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{29803}}^1$

素因数の和:29964

約数の個数: 64

約数和(自身を含む): 5182319520

約数和(自身を除く): 3059153800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 137, 260, 274, 520, 548, 685, 1096, 1370, 1781, 2740, 3562, 5480, 7124, 8905, 14248, 17810, 29803, 35620, 59606, 71240, 119212, 149015, 238424, 298030, 387439, 596060, 774878, 1192120, 1549756, 1937195, 3099512, 3874390, 4083011, 7748780, 8166022, 15497560, 16332044, 20415055, 32664088, 40830110, 53079143, 81660220, 106158286, 163320440, 212316572, 265395715, 424633144, 530791430, 1061582860, 2123165720]

約数ペア:

[(1, 2123165720), (2, 1061582860), (4, 530791430), (5, 424633144), (8, 265395715), (10, 212316572), (13, 163320440), (20, 106158286), (26, 81660220), (40, 53079143), (52, 40830110), (65, 32664088), (104, 20415055), (130, 16332044), (137, 15497560), (260, 8166022), (274, 7748780), (520, 4083011), (548, 3874390), (685, 3099512), (1096, 1937195), (1370, 1549756), (1781, 1192120), (2740, 774878), (3562, 596060), (5480, 387439), (7124, 298030), (8905, 238424), (14248, 149015), (17810, 119212), (29803, 71240), (35620, 59606)]