208138840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:513

約数の個数: 128

約数和(自身を含む): 581253120

約数和(自身を除く): 373114280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 211, 260, 271, 280, 364, 422, 455, 520, 542, 728, 844, 910, 1055, 1084, 1355, 1477, 1688, 1820, 1897, 2110, 2168, 2710, 2743, 2954, 3523, 3640, 3794, 4220, 5420, 5486, 5908, 7046, 7385, 7588, 8440, 9485, 10840, 10972, 11816, 13715, 14092, 14770, 15176, 17615, 18970, 19201, 21944, 24661, 27430, 28184, 29540, 35230, 37940, 38402, 49322, 54860, 57181, 59080, 70460, 75880, 76804, 96005, 98644, 109720, 114362, 123305, 140920, 153608, 192010, 197288, 228724, 246610, 285905, 384020, 400267, 457448, 493220, 571810, 743353, 768040, 800534, 986440, 1143620, 1486706, 1601068, 2001335, 2287240, 2973412, 3202136, 3716765, 4002670, 5203471, 5946824, 7433530, 8005340, 10406942, 14867060, 16010680, 20813884, 26017355, 29734120, 41627768, 52034710, 104069420, 208138840]

約数ペア:

[(1, 208138840), (2, 104069420), (4, 52034710), (5, 41627768), (7, 29734120), (8, 26017355), (10, 20813884), (13, 16010680), (14, 14867060), (20, 10406942), (26, 8005340), (28, 7433530), (35, 5946824), (40, 5203471), (52, 4002670), (56, 3716765), (65, 3202136), (70, 2973412), (91, 2287240), (104, 2001335), (130, 1601068), (140, 1486706), (182, 1143620), (211, 986440), (260, 800534), (271, 768040), (280, 743353), (364, 571810), (422, 493220), (455, 457448), (520, 400267), (542, 384020), (728, 285905), (844, 246610), (910, 228724), (1055, 197288), (1084, 192010), (1355, 153608), (1477, 140920), (1688, 123305), (1820, 114362), (1897, 109720), (2110, 98644), (2168, 96005), (2710, 76804), (2743, 75880), (2954, 70460), (3523, 59080), (3640, 57181), (3794, 54860), (4220, 49322), (5420, 38402), (5486, 37940), (5908, 35230), (7046, 29540), (7385, 28184), (7588, 27430), (8440, 24661), (9485, 21944), (10840, 19201), (10972, 18970), (11816, 17615), (13715, 15176), (14092, 14770)]