51210180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:538

約数の個数: 144

約数和(自身を含む): 179786880

約数和(自身を除く): 128576700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 126, 140, 180, 194, 210, 252, 291, 315, 388, 419, 420, 485, 582, 630, 679, 838, 873, 970, 1164, 1257, 1260, 1358, 1455, 1676, 1746, 1940, 2037, 2095, 2514, 2716, 2910, 2933, 3395, 3492, 3771, 4074, 4190, 4365, 5028, 5820, 5866, 6111, 6285, 6790, 7542, 8148, 8380, 8730, 8799, 10185, 11732, 12222, 12570, 13580, 14665, 15084, 17460, 17598, 18855, 20370, 24444, 25140, 26397, 29330, 30555, 35196, 37710, 40643, 40740, 43995, 52794, 58660, 61110, 75420, 81286, 87990, 105588, 121929, 122220, 131985, 162572, 175980, 203215, 243858, 263970, 284501, 365787, 406430, 487716, 527940, 569002, 609645, 731574, 812860, 853503, 1138004, 1219290, 1422505, 1463148, 1707006, 1828935, 2438580, 2560509, 2845010, 3414012, 3657870, 4267515, 5121018, 5690020, 7315740, 8535030, 10242036, 12802545, 17070060, 25605090, 51210180]

約数ペア:

[(1, 51210180), (2, 25605090), (3, 17070060), (4, 12802545), (5, 10242036), (6, 8535030), (7, 7315740), (9, 5690020), (10, 5121018), (12, 4267515), (14, 3657870), (15, 3414012), (18, 2845010), (20, 2560509), (21, 2438580), (28, 1828935), (30, 1707006), (35, 1463148), (36, 1422505), (42, 1219290), (45, 1138004), (60, 853503), (63, 812860), (70, 731574), (84, 609645), (90, 569002), (97, 527940), (105, 487716), (126, 406430), (140, 365787), (180, 284501), (194, 263970), (210, 243858), (252, 203215), (291, 175980), (315, 162572), (388, 131985), (419, 122220), (420, 121929), (485, 105588), (582, 87990), (630, 81286), (679, 75420), (838, 61110), (873, 58660), (970, 52794), (1164, 43995), (1257, 40740), (1260, 40643), (1358, 37710), (1455, 35196), (1676, 30555), (1746, 29330), (1940, 26397), (2037, 25140), (2095, 24444), (2514, 20370), (2716, 18855), (2910, 17598), (2933, 17460), (3395, 15084), (3492, 14665), (3771, 13580), (4074, 12570), (4190, 12222), (4365, 11732), (5028, 10185), (5820, 8799), (5866, 8730), (6111, 8380), (6285, 8148), (6790, 7542)]