20871891696

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{45121}}^1$

素因数の和:45574

約数の個数: 80

約数和(自身を含む): 56398890240

約数和(自身を除く): 35526998544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 138, 184, 276, 368, 419, 552, 838, 1104, 1257, 1676, 2514, 3352, 5028, 6704, 9637, 10056, 19274, 20112, 28911, 38548, 45121, 57822, 77096, 90242, 115644, 135363, 154192, 180484, 231288, 270726, 360968, 462576, 541452, 721936, 1037783, 1082904, 2075566, 2165808, 3113349, 4151132, 6226698, 8302264, 12453396, 16604528, 18905699, 24906792, 37811398, 49813584, 56717097, 75622796, 113434194, 151245592, 226868388, 302491184, 434831077, 453736776, 869662154, 907473552, 1304493231, 1739324308, 2608986462, 3478648616, 5217972924, 6957297232, 10435945848, 20871891696]

約数ペア:

[(1, 20871891696), (2, 10435945848), (3, 6957297232), (4, 5217972924), (6, 3478648616), (8, 2608986462), (12, 1739324308), (16, 1304493231), (23, 907473552), (24, 869662154), (46, 453736776), (48, 434831077), (69, 302491184), (92, 226868388), (138, 151245592), (184, 113434194), (276, 75622796), (368, 56717097), (419, 49813584), (552, 37811398), (838, 24906792), (1104, 18905699), (1257, 16604528), (1676, 12453396), (2514, 8302264), (3352, 6226698), (5028, 4151132), (6704, 3113349), (9637, 2165808), (10056, 2075566), (19274, 1082904), (20112, 1037783), (28911, 721936), (38548, 541452), (45121, 462576), (57822, 360968), (77096, 270726), (90242, 231288), (115644, 180484), (135363, 154192)]