20139631720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1789}}^1\times {\mathrm{21649}}^1$

素因数の和:23462

約数の個数: 64

約数和(自身を含む): 48829410000

約数和(自身を除く): 28689778280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1789, 3578, 7156, 8945, 14312, 17890, 21649, 23257, 35780, 43298, 46514, 71560, 86596, 93028, 108245, 116285, 173192, 186056, 216490, 232570, 281437, 432980, 465140, 562874, 865960, 930280, 1125748, 1407185, 2251496, 2814370, 5628740, 11257480, 38730061, 77460122, 154920244, 193650305, 309840488, 387300610, 503490793, 774601220, 1006981586, 1549202440, 2013963172, 2517453965, 4027926344, 5034907930, 10069815860, 20139631720]

約数ペア:

[(1, 20139631720), (2, 10069815860), (4, 5034907930), (5, 4027926344), (8, 2517453965), (10, 2013963172), (13, 1549202440), (20, 1006981586), (26, 774601220), (40, 503490793), (52, 387300610), (65, 309840488), (104, 193650305), (130, 154920244), (260, 77460122), (520, 38730061), (1789, 11257480), (3578, 5628740), (7156, 2814370), (8945, 2251496), (14312, 1407185), (17890, 1125748), (21649, 930280), (23257, 865960), (35780, 562874), (43298, 465140), (46514, 432980), (71560, 281437), (86596, 232570), (93028, 216490), (108245, 186056), (116285, 173192)]