208029910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 425502720

約数和(自身を除く): 217472810

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 79, 110, 158, 185, 370, 395, 407, 647, 790, 814, 869, 1294, 1738, 2035, 2923, 3235, 4070, 4345, 5846, 6470, 7117, 8690, 14234, 14615, 23939, 29230, 32153, 35585, 47878, 51113, 64306, 71170, 102226, 119695, 160765, 239390, 255565, 263329, 321530, 511130, 526658, 562243, 1124486, 1316645, 1891181, 2633290, 2811215, 3782362, 5622430, 9455905, 18911810, 20802991, 41605982, 104014955, 208029910]

約数ペア:

[(1, 208029910), (2, 104014955), (5, 41605982), (10, 20802991), (11, 18911810), (22, 9455905), (37, 5622430), (55, 3782362), (74, 2811215), (79, 2633290), (110, 1891181), (158, 1316645), (185, 1124486), (370, 562243), (395, 526658), (407, 511130), (647, 321530), (790, 263329), (814, 255565), (869, 239390), (1294, 160765), (1738, 119695), (2035, 102226), (2923, 71170), (3235, 64306), (4070, 51113), (4345, 47878), (5846, 35585), (6470, 32153), (7117, 29230), (8690, 23939), (14234, 14615)]