20050016

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{673}}^1$

素因数の和:716

約数の個数: 72

約数和(自身を含む): 48406680

約数和(自身を除く): 28356664

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 76, 98, 112, 133, 152, 196, 224, 266, 304, 392, 532, 608, 673, 784, 931, 1064, 1346, 1568, 1862, 2128, 2692, 3724, 4256, 4711, 5384, 7448, 9422, 10768, 12787, 14896, 18844, 21536, 25574, 29792, 32977, 37688, 51148, 65954, 75376, 89509, 102296, 131908, 150752, 179018, 204592, 263816, 358036, 409184, 527632, 626563, 716072, 1055264, 1253126, 1432144, 2506252, 2864288, 5012504, 10025008, 20050016]

約数ペア:

[(1, 20050016), (2, 10025008), (4, 5012504), (7, 2864288), (8, 2506252), (14, 1432144), (16, 1253126), (19, 1055264), (28, 716072), (32, 626563), (38, 527632), (49, 409184), (56, 358036), (76, 263816), (98, 204592), (112, 179018), (133, 150752), (152, 131908), (196, 102296), (224, 89509), (266, 75376), (304, 65954), (392, 51148), (532, 37688), (608, 32977), (673, 29792), (784, 25574), (931, 21536), (1064, 18844), (1346, 14896), (1568, 12787), (1862, 10768), (2128, 9422), (2692, 7448), (3724, 5384), (4256, 4711)]